feat(icons): shrink the Android adaptive mark 25%, give old square launchers the full-bleed master

The adaptive foreground's asterisk grazed the round mask's safe zone. Scale the
foreground mark 0.75 about the icon centre (25% smaller, the letter-to-star
arrangement unchanged) so it sits well inside the 61% safe zone. Independently,
the legacy square ic_launcher.png now renders the full-bleed master instead of
the safe-zone composite, so old Android (< API 26) shows a large mark rather
than a shrunk one; the legacy round icon keeps the safe-zone composite (a round
mask would clip the master's corner star). Regenerate the layer set, Android
res and the brandbook foreground previews; update ICON_BRANDBOOK.md / ICONS.md.

assets/icons/brand/build-android-res.mjs

@@ -19,6 +19,11 @@ const uri = p => 'data:image/png;base64,' + readFileSync(p).toString('base64');
 const BG = uri(join(ROOT, 'ui', 'assets', 'icon-background.png'));
 const FG = uri(join(ROOT, 'ui', 'assets', 'icon-foreground.png'));
 const MONO = uri(join(DIR, 'android-monochrome.png'));
+// The full-bleed master (square tile + master mark) — the legacy SQUARE launcher (API < 26)
+// uses it so old Android shows a large mark rather than the safe-zone foreground shrunk into
+// the middle. The round legacy icon keeps the safe-zone composite (a round mask would clip
+// the master's corner ✻).
+const MASTER = uri(join(ROOT, 'ui', 'assets', 'icon.png'));
 
 // density: [adaptive-layer px (108 dp), legacy launcher px (48 dp)]
 const D = { ldpi: [81, 36], mdpi: [108, 48], hdpi: [162, 72], xhdpi: [216, 96], xxhdpi: [324, 144], xxxhdpi: [432, 192] };
@@ -38,8 +43,9 @@ for (const [d, [fg, lg]] of Object.entries(D)) {
   writeFileSync(join(dir, 'ic_launcher_background.png'), await shot(im(BG, fg), fg, false));
   writeFileSync(join(dir, 'ic_launcher_foreground.png'), await shot(im(FG, fg), fg, true));
   writeFileSync(join(dir, 'ic_launcher_monochrome.png'), await shot(im(MONO, fg), fg, true));
-  const comp = `<div style="position:relative;width:${lg}px;height:${lg}px">${im(BG, lg)}<div style="position:absolute;inset:0">${im(FG, lg)}</div></div>`;
+  // Square launcher: the full-bleed master (large mark). Round launcher: the safe-zone
-  writeFileSync(join(dir, 'ic_launcher.png'), await shot(comp, lg, false));
+  // composite, circle-clipped (the master's corner ✻ would be clipped by the round mask).
+  writeFileSync(join(dir, 'ic_launcher.png'), await shot(im(MASTER, lg), lg, false));
   const round = `<div style="width:${lg}px;height:${lg}px;border-radius:50%;overflow:hidden;position:relative">${im(BG, lg)}<div style="position:absolute;inset:0">${im(FG, lg)}</div></div>`;
   writeFileSync(join(dir, 'ic_launcher_round.png'), await shot(round, lg, true));
   console.log('mipmap-' + d, 'ok');

assets/icons/brand/build-icon.mjs

@@ -33,8 +33,12 @@ const SHADE = 0.15;                   // black, this alpha bottom-left -> transp
 // The mark, placed for the standalone master (bottom-right biased, full-bleed):
 const MASTER = { lh: 0.6055, lc: [0.4814, 0.4922], sd: 0.1729, sc: [0.7881, 0.7881] };
 // The mark, placed for the Android foreground layer (centred-ish inside the 61% safe
-// zone, nudged right 8% / down 3% for optical balance under the round mask; smaller ✻):
+// zone, nudged right 8% / down 3% for optical balance under the round mask; smaller ✻).
-const FOREGROUND = { lh: 0.5391, lc: [0.5234, 0.4951], sd: 0.1318, sc: [0.7627, 0.7266] };
+// Every value is the earlier placement scaled 0.75 about the icon centre (0.5, 0.5): the
+// whole mark is 25% smaller, its «Э»↔✻ arrangement unchanged, so the ✻ that used to graze
+// the round mask now sits well inside the safe zone. Round-mask launchers (adaptive + the
+// legacy round icon) get more breathing room; the full-bleed master is untouched.
+const FOREGROUND = { lh: 0.4043, lc: [0.5176, 0.4963], sd: 0.0989, sc: [0.6970, 0.6700] };
 
 const PALETTE = {
   light: { wood: '#e6b053', ink: '#5a3a12', grain: '#d8a54e' },

docs/ICONS.md

@@ -54,7 +54,10 @@ already fill the 108 dp canvas (foreground inside the 61 % safe zone, background
 full-bleed), so they must be placed with **no inset**, and we add the **monochrome**
 themed layer, neither of which `capacitor-assets` does. Per density mdpi→xxxhdpi (+ldpi):
 
-- `mipmap-*/ic_launcher.png` / `ic_launcher_round.png` — legacy square / round (composite)
+- `mipmap-*/ic_launcher.png` — legacy square (< API 26): the **full-bleed master** (large
+  mark), so old square launchers do not shrink it into the safe zone
+- `mipmap-*/ic_launcher_round.png` — legacy round (< API 26): the safe-zone **composite**,
+  circle-clipped (a round mask would clip the master's corner ✻)
 - `mipmap-*/ic_launcher_foreground.png` + `ic_launcher_background.png` — adaptive layers
 - `mipmap-*/ic_launcher_monochrome.png` — themed layer
 - `mipmap-anydpi-v26/ic_launcher.xml` + `ic_launcher_round.xml` — **no `<inset>`**, with

docs/ICON_BRANDBOOK.md

@@ -123,12 +123,13 @@ So Android is **not** the full-bleed master — it is built as two layers:
   and square** (no rounded corners; the OS supplies the shape). It fills the whole 108 dp
   layer, so the sacrificial outer ring is just more wood.
 - **Foreground** — **only the «Э» + ✻**, transparent, **re-placed** to sit safely inside
-  the mask:
+  the mask. The whole mark is the master's optical placement (nudged right 8 % / down 3 %)
-  - «Э»: box height **53.9 %**, box center **52.3 % / 49.5 %**.
+  scaled **0.75 about the icon centre** — **25 % smaller**, its «Э» ↔ ✻ arrangement
-  - ✻: outer diameter **13.2 %** (smaller than the master's), center **76.3 % / 72.7 %**,
+  unchanged — so the ✻ that used to graze the round mask now sits well inside the **61 %
+  safe zone** with margin to spare:
+  - «Э»: box height **40.4 %**, box center **51.8 % / 49.6 %**.
+  - ✻: outer diameter **9.9 %** (smaller than the master's), center **69.7 % / 67.0 %**,
     tucked closer to the letter.
-  - The mark is centred, then nudged **right 8 % / down 3 %** so it reads optically
-    centred under the round mask, and the whole group fits within the **61 % safe zone**.
 
 Everything else (palette, grain, gradients, star construction) is identical to the master.