diff --git a/CLAUDE.md b/CLAUDE.md
index d00e24e..c1cfd52 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1,9 +1,9 @@
 # Working on this repo (agent notes)
 
-Pilgrims of Katan — an Android collection of card and board games, playable
-against AI or over Wi-Fi (LAN). Bootstrapped from
+ProLibertateGames — Wallacenet's build of an Android collection of card and
+board games, playable against AI or over Wi-Fi (LAN). Upstream:
 [adrianoftyriel/ProLibertateGames](https://github.com/adrianoftyriel/ProLibertateGames)
-(GPL-3.0, kept as the `upstream` remote) for Wallacenet. Canonical repo:
+(GPL-3.0, kept as the `upstream` remote). Canonical repo:
 <https://git.wallacenet.ca/devadmin/PilgrimsOfKatan>.
 
 ## Ground rules
@@ -11,13 +11,15 @@ against AI or over Wi-Fi (LAN). Bootstrapped from
 - **Licences travel.** `LICENSE` is GPL-3.0 and must stay. The Uncial Antiqua
   font ships with its OFL licence at `docs/licenses/UncialAntiqua-OFL.txt`;
   never delete or edit either. Attribution to the upstream lives in the README.
-- **No Catan trademarks or brand assets**, and none of the upstream's Wallace
-  clan branding (it was removed in the rebrand; see README → Branding). The
-  brand is: *Pilgrims of Katan*, `ca.wallacenet.pilgrimsofkatan` (+ `.dev`),
-  slate blue / dev green, hexagon emblem.
+- **No Catan trademarks or brand assets** — the one hard line. The app's own
+  branding is the upstream's, restored (see README → Branding): tartan launcher
+  icon and splash, Wallace clan red on production and hunting green on dev,
+  launcher names *Pro Libertate Games* / *Pro Libertate Games DEV*. The
+  installed identity is `ca.wallacenet.pilgrimsofkatan` (+ `.dev`).
 - **The existing catalogue is the regression safety net.** Keep every game
-  green; new games (Catan) arrive as separate tasks, not edits to old ones.
-  All 22 games are `available = true`.
+  green; new games (Katan) arrive as separate tasks, not edits to old ones.
+  The 22 reference games are `available = true`; Katan is listed with
+  `available = false` (*Coming soon*) until its game task lands.
 - **Docs conventions**: every game gets `docs/RULES-<id>.md` (index and gaps in
   `docs/README.md`); build/CI/release decisions go in `docs/CI.md`. Update the
   docs when behaviour changes — they are the check against the rules code.
diff --git a/README.md b/README.md
index 00767e6..451c55f 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,15 @@
-# Pilgrims of Katan
+# ProLibertateGames
 
 A collection of card and board games for Android, playable against the computer
 or against other people over Wi-Fi (LAN).
 
-Derived from [ProLibertateGames](https://github.com/adrianoftyriel/ProLibertateGames)
-by adrianoftyriel, used under the GNU GPL v3 — see [LICENSE](LICENSE). Game
-rules documentation lives under [docs/](docs/README.md); build, CI and release
-decisions live in [docs/CI.md](docs/CI.md). Catan itself arrives in later work;
-this app ships the reference catalogue unchanged as the regression safety net.
+Wallacenet's build of [ProLibertateGames](https://github.com/adrianoftyriel/ProLibertateGames)
+by adrianoftyriel (GNU GPL v3 — see [LICENSE](LICENSE)), hosted at
+<https://git.wallacenet.ca/devadmin/PilgrimsOfKatan>. Game rules documentation
+lives under [docs/](docs/README.md); build, CI and release decisions live in
+[docs/CI.md](docs/CI.md). Katan itself arrives in later work — it is listed under
+Board Games as *Coming soon* — and this app ships the reference catalogue
+unchanged as the regression safety net.
 
 ## What works today
 
@@ -16,15 +18,15 @@ The app shell is complete and every game in the catalogue is playable end to end
 | | |
 | --- | --- |
 | **Cards** | Euchre, Kaiser, President, Golf, Wizard, Crazy 8s, Cribbage, Hearts, Klondike, FreeCell, Spider, Pyramid |
-| **Table** | Sequence, Chess, Checkers, Backgammon, Mastermind, Nine Men's Morris, Peg Solitaire, Yahtzee, Pirates and Bulgars, Ta Yü |
+| **Table** | Sequence, Chess, Checkers, Backgammon, Mastermind, Nine Men's Morris, Peg Solitaire, Yahtzee, Pirates and Bulgars, Ta Yü, Katan *(coming soon)* |
 
-Nothing is marked *Coming soon* at the moment, because nothing is waiting. The
-machinery for it is still there and still tested: a game listed in `GameCatalog`
-with `available = false` appears in the menu marked *Coming soon* **on dev builds
-only**, so a production release lists just what can actually be played and nobody
-installs it and taps into a dead end. The menu decides this from the installed
-APK's own version name — the same source the updater uses to know which channel
-it is on.
+One entry is marked *Coming soon*: Katan, the island game, whose engine and
+screen land with their own task. The machinery is still there and still tested:
+a game listed in `GameCatalog` with `available = false` appears in the menu
+marked *Coming soon* **on dev builds only**, so a production release lists just
+what can actually be played and nobody installs it and taps into a dead end. The
+menu decides this from the installed APK's own version name — the same source
+the updater uses to know which channel it is on.
 
 Adding a game means writing a `GameRules` implementation, a `GameAi` and a
 screen, then flipping `available` — the menu, lobby, networking, settings and OTA
@@ -135,21 +137,21 @@ it: every rule above is a pure function and unit-tested on the JVM.
 
 ## Branding
 
-Neutral, original, and deliberately *not* Catan's: no third-party marks or
-trade dress ship in this app (rebrand scope: WALA-118). The launcher icon is a
-hexagonal ring around a solid core — a game tile, not any game's logo — drawn
-as vector drawables so it stays sharp at every density and needs no PNGs. The
-app opens on the brand field fading to its deep shade, the name set in a Celtic
-uncial hand for two seconds before it fades into the menu.
+The app wears the upstream's own branding, restored (WALA-118 review): the
+Wallace tartan is the launcher icon and the splash, drawn as vector drawables and
+Compose code so it stays sharp at every density and needs no PNGs. The app opens
+on the tartan held under the name, set in a Celtic uncial hand for two seconds
+before it fades into the menu.
 
-A dev build wears the **dev green** field where production wears **slate
-blue**, and installs as *Pilgrims of Katan DEV*. That is what tells the two
+A dev build wears the **hunting green** sett where production wears the **clan
+red**, and installs as *Pro Libertate Games DEV*. That is what tells the two
 copies apart when both are on the phone; see
-[Both channels on one device](#both-channels-on-one-device). The palette lives
-in `ui/theme/Theme.kt` (`BrandField`, `BrandDeep`, `BrandAccent`) and the two
-channel colours are generated per build by `resValue` in `app/build.gradle.kts`
-— the icon vectors reference `@color/brand_field` rather than a literal, which
-is how one set of vectors serves both colourways.
+[Both channels on one device](#both-channels-on-one-device). The tartan is drawn
+by `ui/theme/Tartan.kt` (`TartanBackground`, `threadWidthFor`) off
+`BuildConfig.DEV_BUILD`; the matching vector colours are generated per build by
+`resValue` in `app/build.gradle.kts` — the icon vectors reference
+`@color/tartan_field` rather than a literal, which is how one set of vectors
+serves both colourways.
 
 Two honest caveats:
 
@@ -158,9 +160,10 @@ Two honest caveats:
   the SIL Open Font License 1.1. The full licence is at
   [docs/licenses/UncialAntiqua-OFL.txt](docs/licenses/UncialAntiqua-OFL.txt) and
   must stay with the font — the OFL requires it to be distributed alongside.
-- **The upstream's clan tartan is gone; its code is not.** The Wallace tartan
-  was the upstream's brand and left with the rebrand. The GPL-licensed history
-  that produced this app remains in git, and the source stays at
+- **Katan is the one place this app deliberately diverges.** No Catan
+  trademarks or brand assets ship anywhere in it; the island game is listed
+  under its own name with original art only. The GPL-licensed history that
+  produced this app remains in git, and the source stays at
   [adrianoftyriel/ProLibertateGames](https://github.com/adrianoftyriel/ProLibertateGames)
   as the `upstream` remote.
 
@@ -187,10 +190,10 @@ smaller than a fingertip.
 Requires JDK 17 and the Android SDK (compileSdk 34).
 
 A local build is a dev build: it installs as
-`ca.wallacenet.pilgrimsofkatan.dev` under the name *Pilgrims of Katan DEV* on
-the dev green field, so it goes on beside a production copy rather than over it.
-Set `PLG_CHANNEL=production` to build the production package
-(`ca.wallacenet.pilgrimsofkatan`, slate blue).
+`ca.wallacenet.pilgrimsofkatan.dev` under the name *Pro Libertate Games DEV* on
+the hunting-green sett, so it goes on beside a production copy rather than over
+it. Set `PLG_CHANNEL=production` to build the production package
+(`ca.wallacenet.pilgrimsofkatan`, clan red).
 
 ## CI
 
@@ -271,8 +274,8 @@ Three things move together, all off `isDevBuild` in `app/build.gradle.kts`:
 | | Production | Dev |
 | --- | --- | --- |
 | `applicationId` | `ca.wallacenet.pilgrimsofkatan` | `ca.wallacenet.pilgrimsofkatan.dev` |
-| Launcher name | Pilgrims of Katan | Pilgrims of Katan DEV |
-| Brand field | slate blue | deep green |
+| Launcher name | Pro Libertate Games | Pro Libertate Games DEV |
+| Tartan sett | clan red | hunting green |
 
 Anything that is not an explicit `PLG_CHANNEL=production` build is a dev build,
 so a local `assembleDebug` is a dev build too and installs alongside a release
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 0ef53d6..8f55f16 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -40,9 +40,9 @@ val versionSeries = (project.findProperty("plgVersionSeries") as String?) ?: "1.
 //
 // This one flag drives everything that makes a dev build a separate app rather
 // than a replacement for the production one — its own applicationId, its own
-// launcher name, and its own brand colour. They have to move together: a dev
-// package wearing the production name and colours is exactly the confusion
-// having both installed is meant to avoid.
+// launcher name, and the hunting sett in place of the clan sett. They have to
+// move together: a dev package wearing the production name and colours is
+// exactly the confusion having both installed is meant to avoid.
 val isDevBuild = buildChannel != "production"
 
 android {
@@ -83,19 +83,21 @@ android {
         resValue(
             "string",
             "app_name",
-            if (isDevBuild) "Pilgrims of Katan DEV" else "Pilgrims of Katan",
+            if (isDevBuild) "Pro Libertate Games DEV" else "Pro Libertate Games",
         )
 
-        // The one colour that separates the two installs: slate blue on
-        // production, deep green on dev. The launcher icon and the splash are
-        // both built from it, so the drawer shows at a glance which of the two
-        // copies is which — the two have to stay in step or the icon and the
-        // splash it opens on would be different brands.
-        resValue("color", "brand_field", if (isDevBuild) "#2A6B54" else "#2B4A78")
-        // A darker shade of the same hue, held behind the window for the
-        // instant before the splash draws, so a launch never flashes the wrong
-        // colour.
-        resValue("color", "splash_background", if (isDevBuild) "#153B2F" else "#182A44")
+        // The one colour that separates the two setts: Wallace red for
+        // production, Wallace Hunting green for dev. The icon vectors reference
+        // this rather than a literal, and Tartan.kt picks the matching Compose
+        // colour off DEV_BUILD below — the two have to stay in step or the
+        // launcher icon and the splash it opens on would be different cloth.
+        resValue("color", "tartan_field", if (isDevBuild) "#1E7A3C" else "#E01B24")
+        // Shades of the same field, so a launch does not flash the wrong colour
+        // before the tartan is drawn: splash_background is held behind the
+        // window for that instant, ic_launcher_background is the icon's flat
+        // fallback.
+        resValue("color", "splash_background", if (isDevBuild) "#0D2E17" else "#4A0B10")
+        resValue("color", "ic_launcher_background", if (isDevBuild) "#145C2D" else "#B3121B")
 
         buildConfigField("boolean", "DEV_BUILD", isDevBuild.toString())
 
@@ -131,7 +133,7 @@ android {
 
     buildFeatures {
         compose = true
-        // For DEV_BUILD, which is how the Compose splash picks its brand colour.
+        // For DEV_BUILD, which is how the Compose tartan picks its sett.
         buildConfig = true
     }
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 819e9ad..3881c73 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -25,7 +25,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/Theme.PilgrimsOfKatan">
+        android:theme="@style/Theme.ProLibertateGames">
 
         <!-- No fixed orientation: the UI adapts to portrait, landscape and
              tablet widths. configChanges keeps Compose state across rotation
diff --git a/app/src/main/java/org/prolibertate/games/MainActivity.kt b/app/src/main/java/org/prolibertate/games/MainActivity.kt
index b58a1da..84f272d 100644
--- a/app/src/main/java/org/prolibertate/games/MainActivity.kt
+++ b/app/src/main/java/org/prolibertate/games/MainActivity.kt
@@ -12,7 +12,7 @@ import org.prolibertate.games.score.ScorekeeperRepository
 import org.prolibertate.games.settings.SettingsRepository
 import org.prolibertate.games.ui.AppEnv
 import org.prolibertate.games.ui.AppRoot
-import org.prolibertate.games.ui.theme.PilgrimsTheme
+import org.prolibertate.games.ui.theme.ProLibertateTheme
 import org.prolibertate.games.update.Updater
 import java.util.UUID
 
@@ -43,7 +43,7 @@ class MainActivity : ComponentActivity() {
         )
 
         setContent {
-            PilgrimsTheme {
+            ProLibertateTheme {
                 AppRoot(env)
             }
         }
diff --git a/app/src/main/java/org/prolibertate/games/game/Catalog.kt b/app/src/main/java/org/prolibertate/games/game/Catalog.kt
index 112e84f..ca9ae3f 100644
--- a/app/src/main/java/org/prolibertate/games/game/Catalog.kt
+++ b/app/src/main/java/org/prolibertate/games/game/Catalog.kt
@@ -94,6 +94,13 @@ object GameCatalog {
     const val MORRIS = "morris"
     const val PIRATES = "pirates"
 
+    /**
+     * The island game the collection is named for. Listed under Board Games
+     * and marked *Coming soon*; the engine and its screen land with the game
+     * task, and `available` flips on once two-device play is verified.
+     */
+    const val CATAN = "catan"
+
     val all: List<GameDescriptor> = listOf(
         GameDescriptor(
             id = EUCHRE,
@@ -333,6 +340,19 @@ object GameCatalog {
                 "because your score multiplies them.",
             available = true,
         ),
+        GameDescriptor(
+            id = CATAN,
+            title = "Katan",
+            menus = setOf(GameMenu.BOARD),
+            minPlayers = 3,
+            maxPlayers = 4,
+            teamBased = false,
+            blurb = "Trade, build, and settle the island.",
+            // Listed, not playable: the engine and screen land with the Katan
+            // game task. Dev builds show the entry as *Coming soon*; a
+            // production build lists only what can actually be played.
+            available = false,
+        ),
     )
 
     fun byId(id: String): GameDescriptor? = all.firstOrNull { it.id == id }
diff --git a/app/src/main/java/org/prolibertate/games/ui/SplashScreen.kt b/app/src/main/java/org/prolibertate/games/ui/SplashScreen.kt
index 2ada899..fd3aff5 100644
--- a/app/src/main/java/org/prolibertate/games/ui/SplashScreen.kt
+++ b/app/src/main/java/org/prolibertate/games/ui/SplashScreen.kt
@@ -4,6 +4,7 @@ import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.animation.core.tween
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
@@ -19,7 +20,6 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.alpha
 import androidx.compose.ui.geometry.Offset
-import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.Shadow
 import androidx.compose.ui.text.TextStyle
@@ -30,9 +30,8 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import kotlinx.coroutines.delay
 import org.prolibertate.games.R
-import org.prolibertate.games.ui.theme.BrandAccent
-import org.prolibertate.games.ui.theme.BrandDeep
-import org.prolibertate.games.ui.theme.BrandField
+import org.prolibertate.games.ui.theme.TartanBackground
+import org.prolibertate.games.ui.theme.threadWidthFor
 
 /** How long the splash holds at full opacity before fading. */
 private const val SPLASH_HOLD_MILLIS = 2_000L
@@ -46,11 +45,7 @@ private const val SPLASH_FADE_MILLIS = 600
 val CelticFontFamily = FontFamily(Font(R.font.uncial_antiqua))
 
 /**
- * The launch screen: the brand field under the name of the game.
- *
- * The gradient runs from the same hue as the window's `splash_background`
- * held behind it, so the first frame and the splash are one brand in two
- * shades rather than a colour change.
+ * The launch screen: Wallace tartan under the name of the house.
  *
  * Drawn as an overlay rather than a separate destination, so the menu is
  * already composed and ready behind it and the fade reveals a live screen
@@ -75,17 +70,30 @@ fun SplashScreen(
         onFinished()
     }
 
-    BoxWithConstraints(
-        modifier = modifier
-            .fillMaxSize()
-            .alpha(alpha)
-            .background(Brush.verticalGradient(listOf(BrandField, BrandDeep))),
-    ) {
+    BoxWithConstraints(modifier = modifier.fillMaxSize().alpha(alpha)) {
         // Read the constraints here and hold them in locals: inside Column the
         // implicit receiver becomes ColumnScope, and maxWidth/maxHeight are no
         // longer in scope.
         val shortestSide = minOf(maxWidth, maxHeight).value
+
+        // Weave scale is derived from the sett, not a fixed fraction, so a
+        // couple of full repeats are always on screen whatever the threadcount
+        // says and whatever the display is.
+        val threadWidth = threadWidthFor(across = shortestSide.dp, repeats = 2f)
         val titleSize = (shortestSide * 0.13f).sp
+        TartanBackground(
+            modifier = Modifier.fillMaxSize(),
+            threadWidth = threadWidth,
+            // On the bias, matching the icon.
+            rotationDegrees = 45f,
+        )
+
+        // A scrim keeps the lettering legible over the busiest part of the sett.
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .background(Color.Black.copy(alpha = 0.45f))
+        )
 
         Column(
             modifier = Modifier
@@ -95,7 +103,7 @@ fun SplashScreen(
             horizontalAlignment = Alignment.CenterHorizontally,
         ) {
             Text(
-                text = "Pilgrims",
+                text = "Pro Libertate",
                 style = TextStyle(
                     fontFamily = CelticFontFamily,
                     fontSize = titleSize,
@@ -109,11 +117,11 @@ fun SplashScreen(
                 ),
             )
             Text(
-                text = "of Katan",
+                text = "Games",
                 style = TextStyle(
                     fontFamily = CelticFontFamily,
                     fontSize = titleSize,
-                    color = BrandAccent,
+                    color = Color(0xFFF2C200),
                     textAlign = TextAlign.Center,
                     shadow = Shadow(
                         color = Color.Black,
diff --git a/app/src/main/java/org/prolibertate/games/ui/game/CardTable.kt b/app/src/main/java/org/prolibertate/games/ui/game/CardTable.kt
index 05c5b71..b296437 100644
--- a/app/src/main/java/org/prolibertate/games/ui/game/CardTable.kt
+++ b/app/src/main/java/org/prolibertate/games/ui/game/CardTable.kt
@@ -19,7 +19,7 @@ import androidx.compose.ui.unit.dp
 import org.prolibertate.games.ui.common.CARD_ASPECT
 import org.prolibertate.games.ui.theme.FeltGreenDark
 import org.prolibertate.games.ui.theme.Parchment
-import org.prolibertate.games.ui.theme.AccentGold
+import org.prolibertate.games.ui.theme.WallaceGold
 
 /**
  * The furniture every patience table needs.
@@ -48,7 +48,7 @@ fun TableSlot(
         modifier = modifier
             .width(width)
             .border(
-                border = BorderStroke(if (highlighted) 3.dp else 0.dp, AccentGold),
+                border = BorderStroke(if (highlighted) 3.dp else 0.dp, WallaceGold),
                 shape = RoundedCornerShape(4.dp),
             )
             .clickable { onClick() },
diff --git a/app/src/main/java/org/prolibertate/games/ui/game/KlondikeScreen.kt b/app/src/main/java/org/prolibertate/games/ui/game/KlondikeScreen.kt
index 7f4b0dd..af7920b 100644
--- a/app/src/main/java/org/prolibertate/games/ui/game/KlondikeScreen.kt
+++ b/app/src/main/java/org/prolibertate/games/ui/game/KlondikeScreen.kt
@@ -48,7 +48,7 @@ import org.prolibertate.games.ui.common.CardBackView
 import org.prolibertate.games.ui.common.PlayingCardView
 import org.prolibertate.games.ui.theme.FeltGreenDark
 import org.prolibertate.games.ui.theme.Parchment
-import org.prolibertate.games.ui.theme.AccentGold
+import org.prolibertate.games.ui.theme.WallaceGold
 
 private const val TITLE = "Klondike"
 
@@ -311,7 +311,7 @@ private fun Slot(
         modifier = modifier
             .width(CARD_WIDTH)
             .border(
-                border = BorderStroke(if (highlighted) 3.dp else 0.dp, AccentGold),
+                border = BorderStroke(if (highlighted) 3.dp else 0.dp, WallaceGold),
                 shape = RoundedCornerShape(4.dp),
             )
             .clickable { onClick() },
diff --git a/app/src/main/java/org/prolibertate/games/ui/game/PegSolitaireScreen.kt b/app/src/main/java/org/prolibertate/games/ui/game/PegSolitaireScreen.kt
index db1814f..bb27414 100644
--- a/app/src/main/java/org/prolibertate/games/ui/game/PegSolitaireScreen.kt
+++ b/app/src/main/java/org/prolibertate/games/ui/game/PegSolitaireScreen.kt
@@ -41,8 +41,8 @@ import org.prolibertate.games.net.MatchController
 import org.prolibertate.games.ui.ScreenScaffold
 import org.prolibertate.games.ui.theme.FeltGreenDark
 import org.prolibertate.games.ui.theme.Parchment
-import org.prolibertate.games.ui.theme.AccentGold
-import org.prolibertate.games.ui.theme.AccentRed
+import org.prolibertate.games.ui.theme.WallaceGold
+import org.prolibertate.games.ui.theme.WallaceRed
 
 private const val TITLE = "Peg Solitaire"
 
@@ -214,15 +214,15 @@ private fun HoleView(
     Box(modifier = modifier.size(size), contentAlignment = Alignment.Center) {
         val diameter = size * 0.72f
         val ring = when {
-            selected -> AccentGold
-            isDestination -> AccentGold
+            selected -> WallaceGold
+            isDestination -> WallaceGold
             else -> Parchment.copy(alpha = 0.35f)
         }
         Box(
             modifier = Modifier
                 .size(diameter)
                 .background(
-                    color = if (filled) AccentRed else FeltGreenDark,
+                    color = if (filled) WallaceRed else FeltGreenDark,
                     shape = CircleShape,
                 )
                 .border(
diff --git a/app/src/main/java/org/prolibertate/games/ui/game/YahtzeeScreen.kt b/app/src/main/java/org/prolibertate/games/ui/game/YahtzeeScreen.kt
index 7b2d2bb..7c0e401 100644
--- a/app/src/main/java/org/prolibertate/games/ui/game/YahtzeeScreen.kt
+++ b/app/src/main/java/org/prolibertate/games/ui/game/YahtzeeScreen.kt
@@ -42,8 +42,8 @@ import org.prolibertate.games.game.yahtzee.scoreOf
 import org.prolibertate.games.net.MatchController
 import org.prolibertate.games.ui.ScreenScaffold
 import org.prolibertate.games.ui.theme.Parchment
-import org.prolibertate.games.ui.theme.AccentGold
-import org.prolibertate.games.ui.theme.AccentRed
+import org.prolibertate.games.ui.theme.WallaceGold
+import org.prolibertate.games.ui.theme.WallaceRed
 
 private const val TITLE = "Yahtzee"
 
@@ -183,7 +183,7 @@ private fun Die(face: Int?, held: Boolean, enabled: Boolean, onClick: () -> Unit
             .background(if (face == null) Parchment.copy(alpha = 0.3f) else Parchment, RoundedCornerShape(8.dp))
             .border(
                 width = if (held) 3.dp else 1.dp,
-                color = if (held) AccentGold else AccentRed.copy(alpha = 0.4f),
+                color = if (held) WallaceGold else WallaceRed.copy(alpha = 0.4f),
                 shape = RoundedCornerShape(8.dp),
             )
             .clickable(enabled = enabled) { onClick() },
@@ -193,7 +193,7 @@ private fun Die(face: Int?, held: Boolean, enabled: Boolean, onClick: () -> Unit
             text = face?.toString() ?: "·",
             style = MaterialTheme.typography.titleLarge,
             fontWeight = FontWeight.Bold,
-            color = AccentRed,
+            color = WallaceRed,
         )
     }
 }
@@ -263,7 +263,7 @@ private fun CardRow(
                 },
                 modifier = Modifier.weight(1f),
                 style = MaterialTheme.typography.bodySmall,
-                color = if (written == null && open) AccentRed else MaterialTheme.colorScheme.onSurface,
+                color = if (written == null && open) WallaceRed else MaterialTheme.colorScheme.onSurface,
             )
         }
     }
diff --git a/app/src/main/java/org/prolibertate/games/ui/theme/Tartan.kt b/app/src/main/java/org/prolibertate/games/ui/theme/Tartan.kt
new file mode 100644
index 0000000..21e96a1
--- /dev/null
+++ b/app/src/main/java/org/prolibertate/games/ui/theme/Tartan.kt
@@ -0,0 +1,187 @@
+package org.prolibertate.games.ui.theme
+
+import androidx.compose.foundation.Canvas
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.drawscope.DrawScope
+import androidx.compose.ui.graphics.drawscope.rotate
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import org.prolibertate.games.BuildConfig
+
+/** One band of a tartan sett, measured in threads. */
+data class TartanStripe(val color: Color, val threads: Int)
+
+val WallaceRed = Color(0xFFE01B24)
+val WallaceBlack = Color(0xFF0C0C0C)
+val WallaceGold = Color(0xFFF2C518)
+
+/**
+ * The green the hunting sett puts where the clan sett puts red.
+ *
+ * Must match `tartan_field` for a dev build in app/build.gradle.kts, which is
+ * what the launcher icon is woven from — otherwise the icon and the splash it
+ * opens on would be visibly different cloth.
+ */
+val WallaceHuntingGreen = Color(0xFF1E7A3C)
+
+/**
+ * Expands a half-sett into a full repeat by reflecting it.
+ *
+ * Tartans are specified as a half-sett between two pivots and woven out to
+ * both sides, so `A B C` becomes `A B C B` — the pivot stripes are not
+ * doubled. Writing the data this way keeps it in the same form a threadcount
+ * is published in, instead of a flat list that has to be kept symmetric by
+ * hand.
+ */
+fun List<TartanStripe>.pivoted(): List<TartanStripe> =
+    if (size < 3) this else this + drop(1).dropLast(1).reversed()
+
+/**
+ * The Wallace sett, from its published threadcount: **K/4 R32 K32 Y/4**.
+ *
+ * The slashes mark the pivots, so this is the half-sett and it reflects out to
+ * `K4 R32 K32 Y4 K32 R32` — 136 threads, roughly half black, half red, with a
+ * yellow line worth 3%. Two consequences that are easy to get backwards and
+ * that define the pattern:
+ *
+ *  - the yellow overstripe runs down the **centre of a wide black band**, not
+ *    between red and black;
+ *  - the narrow black guard sits **between two red blocks**, splitting the red
+ *    into pairs.
+ *
+ * The threadcount itself lives in [wallaceSett], because the hunting colourway
+ * below is the same cloth in a different colour and must not drift from it.
+ */
+val WallaceSett: List<TartanStripe> = wallaceSett(WallaceRed)
+
+/**
+ * Wallace Hunting: the same threadcount woven in green.
+ *
+ * Hunting setts are the clan cloth in muted, outdoor colours, and for Wallace
+ * that is the one substitution — green for the red — with the black ground and
+ * the yellow overstripe untouched. Deriving it from the same builder rather
+ * than writing the numbers out twice is what keeps that true: a change to the
+ * threadcount cannot land in one colourway and miss the other.
+ */
+val WallaceHuntingSett: List<TartanStripe> = wallaceSett(WallaceHuntingGreen)
+
+/** The Wallace threadcount woven with [field] in place of the red. */
+private fun wallaceSett(field: Color): List<TartanStripe> = listOf(
+    TartanStripe(WallaceBlack, 4),
+    TartanStripe(field, 32),
+    TartanStripe(WallaceBlack, 32),
+    TartanStripe(WallaceGold, 4),
+).pivoted()
+
+/**
+ * The cloth this build wears: the clan sett on production, the hunting sett on
+ * dev.
+ *
+ * A dev build installs as its own app beside the production one, so it has to
+ * be recognisable at a glance in the app drawer and on the splash — the green
+ * says which of the two copies just opened without anything having to be read.
+ */
+val AppSett: List<TartanStripe> =
+    if (BuildConfig.DEV_BUILD) WallaceHuntingSett else WallaceSett
+
+/** Threads in one full repeat of a sett. */
+val List<TartanStripe>.threadsPerRepeat: Int get() = sumOf { it.threads }
+
+/**
+ * The thread width that fits [repeats] repeats of [sett] across [across].
+ *
+ * Scale has to be derived from the sett rather than fixed, because changing a
+ * threadcount changes how many threads a repeat contains — a fixed width and a
+ * larger sett silently zooms in until the cloth is a couple of enormous blocks
+ * and stops reading as tartan at all.
+ */
+fun threadWidthFor(
+    sett: List<TartanStripe> = AppSett,
+    across: Dp,
+    repeats: Float = 2f,
+): Dp = across / (sett.threadsPerRepeat * repeats)
+
+/**
+ * Draws a tartan by laying the sett down vertically as warp, then across as
+ * weft at half opacity. The overlap is what produces the blended squares and
+ * the sense of a woven cloth rather than a printed grid — red warp under black
+ * weft comes out a darker red, exactly as it does on the loom.
+ *
+ * [rotationDegrees] turns the cloth on the bias. The stripes are drawn well
+ * past the edges of the canvas so the corners stay covered once it is turned.
+ */
+fun DrawScope.drawTartan(
+    sett: List<TartanStripe> = AppSett,
+    threadSize: Float,
+    rotationDegrees: Float = 0f,
+) {
+    if (sett.isEmpty() || threadSize <= 0f) return
+    val repeat = sett.sumOf { it.threads } * threadSize
+    if (repeat <= 0f) return
+
+    // Turning a square by 45 degrees needs about 0.21 of its size spare on
+    // every edge; three quarters is generous enough for any angle.
+    val pad = if (rotationDegrees == 0f) 0f else size.maxDimension * 0.75f
+    val left = -pad
+    val top = -pad
+    val right = size.width + pad
+    val bottom = size.height + pad
+
+    rotate(degrees = rotationDegrees) {
+        // Warp: full-height bands.
+        var x = left - (left.mod(repeat))
+        while (x < right) {
+            var offset = x
+            for (stripe in sett) {
+                val width = stripe.threads * threadSize
+                drawRect(
+                    color = stripe.color,
+                    topLeft = Offset(offset, top),
+                    size = Size(width, bottom - top),
+                )
+                offset += width
+            }
+            x += repeat
+        }
+
+        // Weft: full-width bands, half opacity so the warp shows through.
+        var y = top - (top.mod(repeat))
+        while (y < bottom) {
+            var offset = y
+            for (stripe in sett) {
+                val height = stripe.threads * threadSize
+                drawRect(
+                    color = stripe.color.copy(alpha = 0.5f),
+                    topLeft = Offset(left, offset),
+                    size = Size(right - left, height),
+                )
+                offset += height
+            }
+            y += repeat
+        }
+    }
+}
+
+/**
+ * A tartan fill. [threadWidth] sets the weave scale, so the same cloth can be
+ * a fine weave on a phone and a coarse one on a tablet without redrawing it.
+ */
+@Composable
+fun TartanBackground(
+    modifier: Modifier = Modifier,
+    sett: List<TartanStripe> = AppSett,
+    threadWidth: Dp = 2.dp,
+    rotationDegrees: Float = 0f,
+) {
+    Canvas(modifier = modifier) {
+        drawTartan(
+            sett = sett,
+            threadSize = threadWidth.toPx(),
+            rotationDegrees = rotationDegrees,
+        )
+    }
+}
diff --git a/app/src/main/java/org/prolibertate/games/ui/theme/Theme.kt b/app/src/main/java/org/prolibertate/games/ui/theme/Theme.kt
index b89c43b..45aa6a7 100644
--- a/app/src/main/java/org/prolibertate/games/ui/theme/Theme.kt
+++ b/app/src/main/java/org/prolibertate/games/ui/theme/Theme.kt
@@ -6,7 +6,6 @@ import androidx.compose.material3.darkColorScheme
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
-import org.prolibertate.games.BuildConfig
 
 /** Card-table green, which the board and table surfaces are drawn on. */
 val FeltGreen = Color(0xFF1B5E20)
@@ -15,31 +14,6 @@ val Parchment = Color(0xFFF4EFE4)
 val CardRed = Color(0xFFB3261E)
 val CardBlack = Color(0xFF1C1B1F)
 
-/**
- * The brand palette for Pilgrims of Katan — original and neutral, shared by
- * every game in the catalogue. Slate blue on production, deep green on dev, so
- * the two installs are told apart at a glance; both must stay in step with the
- * resValues in app/build.gradle.kts or the icon and the splash it opens on
- * would be different brands.
- *
- * The upstream shipped a clan tartan here. This project carries no clan or
- * third-party trade dress (WALA-118).
- */
-val BrandField: Color = if (BuildConfig.DEV_BUILD) Color(0xFF2A6B54) else Color(0xFF2B4A78)
-val BrandDeep: Color = if (BuildConfig.DEV_BUILD) Color(0xFF153B2F) else Color(0xFF182A44)
-
-/** The parchment accent: the emblem on the icon, the second line of the splash. */
-val BrandAccent: Color = Color(0xFFEFD9A4)
-
-/**
- * Accents used *inside* a game table — a highlight, a held die, a danger mark.
- * Deliberately channel-free: what a game shows must not change with which
- * install it is running in. Values unchanged from the upstream, so the games
- * themselves look exactly as they did.
- */
-val AccentRed = Color(0xFFE01B24)
-val AccentGold = Color(0xFFF2C518)
-
 val TeamColours: List<Color> = listOf(
     Color(0xFF1565C0), // blue
     Color(0xFFC62828), // red
@@ -65,7 +39,7 @@ private val LightColours = lightColorScheme(
 )
 
 @Composable
-fun PilgrimsTheme(
+fun ProLibertateTheme(
     darkTheme: Boolean = isSystemInDarkTheme(),
     content: @Composable () -> Unit,
 ) {
diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml
index fd58ae6..f4ce5b0 100644
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -1,16 +1,70 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-  The flat field behind the launcher emblem: brand_field, slate blue on
-  production and deep green on dev, generated by the build (see resValue in
-  app/build.gradle.kts) so the two installs are told apart in the app drawer
-  by the icon alone.
+  A single square of the Wallace tartan, set on the bias.
+
+  Generated from the published threadcount K/4 R32 K32 Y/4 — the same numbers
+  as WallaceSett in Tartan.kt. The slashes are pivots, so the half-sett
+  reflects out to K4 R32 K32 Y4 K32 R32: the yellow overstripe runs down the
+  centre of a wide black band, and the narrow black guard splits the red into
+  pairs.
+
+  The stripes reference @color/tartan_field rather than a literal, because the
+  same threadcount is woven in two colourways: Wallace red on a production
+  build, Wallace Hunting green on a dev one, so the two installs are told apart
+  in the app drawer by the icon alone. The build generates that colour; see
+  resValue in app/build.gradle.kts.
+
+  Warp is opaque, weft laid over it at half opacity, which is what gives the
+  blended squares rather than a flat grid. Paths run well past the viewport
+  because the group is rotated 45 degrees; the overspill keeps the corners
+  covered. One full repeat fills the adaptive icon's safe zone.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="108dp"
     android:height="108dp"
     android:viewportWidth="108"
     android:viewportHeight="108">
-    <path
-        android:fillColor="@color/brand_field"
-        android:pathData="M0,0h108v108h-108z" />
+    <group
+        android:rotation="45"
+        android:pivotX="54.0"
+        android:pivotY="54.0">
+        <path android:fillColor="@color/tartan_ground" android:pathData="M-90.00,-90.00h288.00v288.00h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-88.94,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-69.88,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M-36.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-16.94,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M2.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M36.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M55.06,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M74.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M108.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M127.06,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M146.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M180.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-105.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-88.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-72.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-69.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-52.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,-36.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-33.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-16.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,0.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,2.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,19.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,36.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,38.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,55.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,72.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,74.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,91.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,108.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,110.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,127.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,144.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,146.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,163.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,180.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,182.12h288.00v16.94h-288.00z" />
+    </group>
 </vector>
diff --git a/app/src/main/res/drawable/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml
index d082dbf..0e5a48e 100644
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@@ -1,23 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-  The brand emblem: a hexagonal ring around a solid hexagonal core, in
-  parchment on the brand field behind it (see ic_launcher_background).
-
-  The hexagon is a game tile, not any game's mark — deliberately generic
-  branding for Pilgrims of Katan, carrying no third-party logo or trade dress.
-  Everything sits inside the adaptive icon's safe zone (a centred 66dp circle
-  on this 108dp canvas) so no launcher mask can clip it.
+  Deliberately empty. The icon is the cloth itself, so the adaptive icon's
+  foreground layer carries nothing — anything drawn here would sit on top of the
+  tartan and break the "single square of tartan" idea.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="108dp"
     android:height="108dp"
     android:viewportWidth="108"
     android:viewportHeight="108">
-    <!-- Ring and core in one even-odd path: outer hexagon, inner hexagon,
-         core hexagon — odd coverage fills, so the ring and the core are drawn
-         and the gap between them stays open to the field showing through. -->
     <path
-        android:fillColor="@color/brand_accent"
-        android:fillType="evenOdd"
-        android:pathData="M84,54 L69,79.98 L39,79.98 L24,54 L39,28.02 L69,28.02 Z M72,54 L63,69.59 L45,69.59 L36,54 L45,38.41 L63,38.41 Z M63,54 L58.5,61.79 L49.5,61.79 L45,54 L49.5,46.21 L58.5,46.21 Z" />
+        android:fillColor="#00000000"
+        android:pathData="M0,0h108v108h-108z" />
 </vector>
diff --git a/app/src/main/res/mipmap/ic_launcher.xml b/app/src/main/res/mipmap/ic_launcher.xml
index 69be1ce..5dc5e35 100644
--- a/app/src/main/res/mipmap/ic_launcher.xml
+++ b/app/src/main/res/mipmap/ic_launcher.xml
@@ -1,22 +1,70 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-  The legacy (pre-API 26) launcher icon: the same brand emblem as the adaptive
-  icon's foreground, over the same brand field, in the one layer those
-  launchers get.
+  A single square of the Wallace tartan, set on the bias.
 
-  Field first, emblem second: two paths, because the emblem's ring relies on
-  even-odd parity and a filled background inside the same path would flip it.
+  Generated from the published threadcount K/4 R32 K32 Y/4 — the same numbers
+  as WallaceSett in Tartan.kt. The slashes are pivots, so the half-sett
+  reflects out to K4 R32 K32 Y4 K32 R32: the yellow overstripe runs down the
+  centre of a wide black band, and the narrow black guard splits the red into
+  pairs.
+
+  The stripes reference @color/tartan_field rather than a literal, because the
+  same threadcount is woven in two colourways: Wallace red on a production
+  build, Wallace Hunting green on a dev one, so the two installs are told apart
+  in the app drawer by the icon alone. The build generates that colour; see
+  resValue in app/build.gradle.kts.
+
+  Warp is opaque, weft laid over it at half opacity, which is what gives the
+  blended squares rather than a flat grid. Paths run well past the viewport
+  because the group is rotated 45 degrees; the overspill keeps the corners
+  covered. One full repeat fills the adaptive icon's safe zone.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="48dp"
     android:height="48dp"
     android:viewportWidth="108"
     android:viewportHeight="108">
-    <path
-        android:fillColor="@color/brand_field"
-        android:pathData="M0,0h108v108h-108z" />
-    <path
-        android:fillColor="@color/brand_accent"
-        android:fillType="evenOdd"
-        android:pathData="M84,54 L69,79.98 L39,79.98 L24,54 L39,28.02 L69,28.02 Z M72,54 L63,69.59 L45,69.59 L36,54 L45,38.41 L63,38.41 Z M63,54 L58.5,61.79 L49.5,61.79 L45,54 L49.5,46.21 L58.5,46.21 Z" />
+    <group
+        android:rotation="45"
+        android:pivotX="54.0"
+        android:pivotY="54.0">
+        <path android:fillColor="@color/tartan_ground" android:pathData="M-90.00,-90.00h288.00v288.00h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-88.94,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-69.88,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M-36.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-16.94,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M2.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M36.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M55.06,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M74.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M108.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M127.06,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M146.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M180.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-105.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-88.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-72.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-69.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-52.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,-36.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-33.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-16.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,0.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,2.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,19.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,36.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,38.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,55.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,72.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,74.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,91.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,108.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,110.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,127.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,144.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,146.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,163.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,180.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,182.12h288.00v16.94h-288.00z" />
+    </group>
 </vector>
diff --git a/app/src/main/res/mipmap/ic_launcher_round.xml b/app/src/main/res/mipmap/ic_launcher_round.xml
index 69be1ce..5dc5e35 100644
--- a/app/src/main/res/mipmap/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap/ic_launcher_round.xml
@@ -1,22 +1,70 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-  The legacy (pre-API 26) launcher icon: the same brand emblem as the adaptive
-  icon's foreground, over the same brand field, in the one layer those
-  launchers get.
+  A single square of the Wallace tartan, set on the bias.
 
-  Field first, emblem second: two paths, because the emblem's ring relies on
-  even-odd parity and a filled background inside the same path would flip it.
+  Generated from the published threadcount K/4 R32 K32 Y/4 — the same numbers
+  as WallaceSett in Tartan.kt. The slashes are pivots, so the half-sett
+  reflects out to K4 R32 K32 Y4 K32 R32: the yellow overstripe runs down the
+  centre of a wide black band, and the narrow black guard splits the red into
+  pairs.
+
+  The stripes reference @color/tartan_field rather than a literal, because the
+  same threadcount is woven in two colourways: Wallace red on a production
+  build, Wallace Hunting green on a dev one, so the two installs are told apart
+  in the app drawer by the icon alone. The build generates that colour; see
+  resValue in app/build.gradle.kts.
+
+  Warp is opaque, weft laid over it at half opacity, which is what gives the
+  blended squares rather than a flat grid. Paths run well past the viewport
+  because the group is rotated 45 degrees; the overspill keeps the corners
+  covered. One full repeat fills the adaptive icon's safe zone.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="48dp"
     android:height="48dp"
     android:viewportWidth="108"
     android:viewportHeight="108">
-    <path
-        android:fillColor="@color/brand_field"
-        android:pathData="M0,0h108v108h-108z" />
-    <path
-        android:fillColor="@color/brand_accent"
-        android:fillType="evenOdd"
-        android:pathData="M84,54 L69,79.98 L39,79.98 L24,54 L39,28.02 L69,28.02 Z M72,54 L63,69.59 L45,69.59 L36,54 L45,38.41 L63,38.41 Z M63,54 L58.5,61.79 L49.5,61.79 L45,54 L49.5,46.21 L58.5,46.21 Z" />
+    <group
+        android:rotation="45"
+        android:pivotX="54.0"
+        android:pivotY="54.0">
+        <path android:fillColor="@color/tartan_ground" android:pathData="M-90.00,-90.00h288.00v288.00h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-88.94,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-69.88,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M-36.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M-16.94,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M2.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M36.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M55.06,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M74.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M108.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M127.06,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_field" android:pathData="M146.12,-90.00h16.94v288.00h-16.94z" />
+        <path android:fillColor="@color/tartan_over" android:pathData="M180.00,-90.00h2.12v288.00h-2.12z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-105.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-88.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-72.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-69.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-52.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,-36.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,-33.88h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,-16.94h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,0.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,2.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,19.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,36.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,38.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,55.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,72.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,74.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,91.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,108.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,110.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,127.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,144.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_field" android:fillAlpha="0.5" android:pathData="M-90.00,146.12h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,163.06h288.00v16.94h-288.00z" />
+        <path android:fillColor="@color/tartan_over" android:fillAlpha="0.5" android:pathData="M-90.00,180.00h288.00v2.12h-288.00z" />
+        <path android:fillColor="@color/tartan_ground" android:fillAlpha="0.5" android:pathData="M-90.00,182.12h288.00v16.94h-288.00z" />
+    </group>
 </vector>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 73a134c..338becd 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-  The colours the brand shares between channels. The two that differ —
-  brand_field (slate blue on production, deep green on dev) and its darker
-  shade splash_background — are generated by the build. See resValue in
-  app/build.gradle.kts.
+  The colours the sett shares between channels. The one that differs —
+  tartan_field, red on production and hunting green on dev — is generated by the
+  build, along with splash_background and ic_launcher_background, which are
+  shades of it. See resValue in app/build.gradle.kts.
 -->
 <resources>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
 
-    <!-- The parchment accent drawn on the brand field: the emblem on the
-         launcher icon and the second line of the splash. Same number as the
-         accent in Theme.kt. -->
-    <color name="brand_accent">#EFD9A4</color>
+    <!-- The ground the sett is woven on, and the overstripe down its centre.
+         Same numbers as WallaceBlack and WallaceGold in Tartan.kt. -->
+    <color name="tartan_ground">#0C0C0C</color>
+    <color name="tartan_over">#F2C518</color>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a16a35a..41e3314 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
   app_name is generated by the build rather than declared here, because it
-  differs by channel: a dev build installs as "Pilgrims of Katan DEV"
+  differs by channel: a dev build installs as "Pro Libertate Games DEV"
   alongside the production copy. See resValue in app/build.gradle.kts.
 -->
 <resources>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index fb26528..492b38a 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -2,7 +2,7 @@
 <resources>
     <!-- Compose supplies the real theme; this only needs to be a Material 3
          base with no action bar so the app draws its own top bars. -->
-    <style name="Theme.PilgrimsOfKatan" parent="android:Theme.Material.NoActionBar">
+    <style name="Theme.ProLibertateGames" parent="android:Theme.Material.NoActionBar">
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowContentOverlay">@null</item>
         <item name="android:windowBackground">@color/splash_background</item>
diff --git a/app/src/test/java/org/prolibertate/games/game/CatalogTest.kt b/app/src/test/java/org/prolibertate/games/game/CatalogTest.kt
index f4b0663..465e065 100644
--- a/app/src/test/java/org/prolibertate/games/game/CatalogTest.kt
+++ b/app/src/test/java/org/prolibertate/games/game/CatalogTest.kt
@@ -106,17 +106,19 @@ class CatalogTest {
     }
 
     @Test
-    fun `every game in the catalogue can be played`() {
-        // There is nothing left marked "coming soon". The machinery that hides
-        // unfinished games from a production build is still there and still
-        // tested above — it simply has nothing to hide at the moment, and this
-        // is what will fail the day something is added to the list before its
-        // engine is written.
-        assertTrue(GameCatalog.all.all { it.available })
+    fun `every reference game in the catalogue can be played`() {
+        // Every game the app ships is playable. The one exception is Katan,
+        // listed so the slot exists and marked *Coming soon* until its engine
+        // and screen land — `available = false` is what keeps an unfinished
+        // game out of a production build while leaving it visible on a dev one.
         assertEquals(
-            GameCatalog.inMenu(GameMenu.BOARD, includeComingSoon = false),
-            GameCatalog.inMenu(GameMenu.BOARD, includeComingSoon = true),
+            listOf(GameCatalog.CATAN),
+            GameCatalog.all.filterNot { it.available }.map { it.id },
         )
+        // It is also the only difference the two channels see in a menu.
+        val hiddenFromProduction = GameCatalog.inMenu(GameMenu.BOARD, includeComingSoon = true) -
+            GameCatalog.inMenu(GameMenu.BOARD, includeComingSoon = false)
+        assertEquals(listOf(GameCatalog.byId(GameCatalog.CATAN)!!), hiddenFromProduction)
     }
 
     @Test
diff --git a/docs/CI.md b/docs/CI.md
index 3a22c9d..4032e58 100644
--- a/docs/CI.md
+++ b/docs/CI.md
@@ -87,8 +87,8 @@ PLG_CHANNEL=production ./gradlew assembleDebug   # production app (ca.wallacenet
 ```
 
 The two variants install side by side: different applicationId, different
-launcher name (`Pilgrims of Katan DEV` vs `Pilgrims of Katan`), different brand
-colour.
+launcher name (`Pro Libertate Games DEV` vs `Pro Libertate Games`), different
+tartan sett.
 
 ## Manual release (works today, no runner needed)