fix: Bug - Android app is zoomed in

Scale launcher and splash brand assets to the adaptive-icon safe zone and a smaller splash ratio so circular launcher masks and the launch splash no longer crop the cat face.

Co-authored-by: Cursor <cursoragent@cursor.com>

agents-docs/features/mobile-capacitor.md

@@ -68,10 +68,10 @@ npm run cap:assets:android   # → tools/generate-android-app-icons.mjs (uses sh
 
 This produces, for every density (`mdpi … xxxhdpi`):
 
-- `mipmap-*/ic_launcher.png` + `ic_launcher_round.png` — legacy launcher bitmaps (the brand disc).
-- `mipmap-*/ic_launcher_foreground.png` — full-bleed adaptive foreground; the adaptive layers in `mipmap-anydpi-v26/ic_launcher*.xml` reference `@mipmap/ic_launcher_foreground` (the stock `drawable-v24/ic_launcher_foreground.xml` vector is removed).
+- `mipmap-*/ic_launcher.png` + `ic_launcher_round.png` — legacy launcher bitmaps (the brand disc inset to the adaptive-icon safe zone so circular masks do not clip the cat face).
+- `mipmap-*/ic_launcher_foreground.png` — adaptive foreground centred at **66/108** of the 108dp canvas (Android safe zone); the adaptive layers in `mipmap-anydpi-v26/ic_launcher*.xml` reference `@mipmap/ic_launcher_foreground` with `@color/ic_launcher_background` brand purple behind it.
 - `values/ic_launcher_background.xml` — adaptive background colour set to the **brand purple `#4A217A`**, not stock white.
-- `drawable*/splash.png` (port + land per density, plus the base) — brand mark centred on a purple field for the launch splash.
+- `drawable*/splash.png` (port + land per density, plus the base) — brand mark centred at **32%** of the shorter splash edge on a purple field (down from 40% so the cat face is not cropped on launch).
 
 Invariants are encoded in `toju-app/src/app/infrastructure/mobile/logic/mobile-android-launcher-icon.rules.ts` (required file set, brand background colour, and the SHA-256 of every stock Capacitor placeholder that must never reappear). Coverage:
 

e2e/tests/mobile/android-app-icon.spec.ts

@@ -6,13 +6,15 @@ import sharp from 'sharp';
 
 import { test, expect } from '../../fixtures/base';
 import {
+  ADAPTIVE_FOREGROUND_ICON_RATIO,
   BRAND_LAUNCHER_BACKGROUND_COLOR,
   findMissingLauncherResources,
   findStockCapacitorResources,
   isBrandLauncherBackgroundColor,
   readAdaptiveIconBackgroundColor,
   REQUIRED_LAUNCHER_ICON_FILES,
-  REQUIRED_SPLASH_FILES
+  REQUIRED_SPLASH_FILES,
+  SPLASH_ICON_RATIO
 } from '../../../toju-app/src/app/infrastructure/mobile/logic/mobile-android-launcher-icon.rules';
 
 /**
@@ -104,4 +106,16 @@ test.describe('Android brand app icon', () => {
     expect(colorDistance(corner, BRAND_PURPLE)).toBeLessThanOrEqual(COLOR_TOLERANCE);
     expect(colorDistance(center, WHITE)).toBeLessThanOrEqual(COLOR_TOLERANCE);
   });
+
+  test('insets the adaptive foreground so launcher masks do not clip the cat face', async () => {
+    const foreground = 'mipmap-xxxhdpi/ic_launcher_foreground.png';
+    const { data, info } = await sharp(join(RES_DIR, foreground)).ensureAlpha()
+      .raw()
+      .toBuffer({ resolveWithObject: true });
+    const topCenterOffset = (0 * info.width + Math.floor(info.width / 2)) * info.channels;
+
+    expect(data[topCenterOffset + 3]).toBeLessThan(32);
+    expect(ADAPTIVE_FOREGROUND_ICON_RATIO).toBeCloseTo(66 / 108, 5);
+    expect(SPLASH_ICON_RATIO).toBeLessThan(0.4);
+  });
 });

toju-app/src/app/infrastructure/mobile/logic/mobile-android-launcher-icon.rules.spec.ts

@@ -2,6 +2,7 @@ import { createHash } from 'node:crypto';
 import { existsSync, readFileSync } from 'node:fs';
 import { resolve } from 'node:path';
 
+import sharp from 'sharp';
 import {
   describe,
   expect,
@@ -9,13 +10,16 @@ import {
 } from 'vitest';
 
 import {
+  ADAPTIVE_FOREGROUND_ICON_RATIO,
   BRAND_LAUNCHER_BACKGROUND_COLOR,
   findMissingLauncherResources,
   findStockCapacitorResources,
   isBrandLauncherBackgroundColor,
   readAdaptiveIconBackgroundColor,
   REQUIRED_LAUNCHER_ICON_FILES,
-  REQUIRED_SPLASH_FILES
+  REQUIRED_SPLASH_FILES,
+  resolveIconPixelSize,
+  SPLASH_ICON_RATIO
 } from './mobile-android-launcher-icon.rules';
 
 const RES_DIR = resolve(process.cwd(), 'android/app/src/main/res');
@@ -31,6 +35,12 @@ describe('mobile-android-launcher-icon.rules', () => {
   const allRequired = [...REQUIRED_LAUNCHER_ICON_FILES, ...REQUIRED_SPLASH_FILES];
   const presentFiles = allRequired.filter((file) => existsSync(resolve(RES_DIR, file)));
 
+  it('keeps the brand mark inside the adaptive-icon safe zone', () => {
+    expect(ADAPTIVE_FOREGROUND_ICON_RATIO).toBeCloseTo(66 / 108, 5);
+    expect(resolveIconPixelSize(432)).toBe(264);
+    expect(SPLASH_ICON_RATIO).toBeLessThan(0.4);
+  });
+
   it('ships a launcher icon and splash for every required density', () => {
     expect(findMissingLauncherResources(presentFiles)).toEqual([]);
   });
@@ -49,4 +59,15 @@ describe('mobile-android-launcher-icon.rules', () => {
     expect(isBrandLauncherBackgroundColor(color)).toBe(true);
     expect(color?.toLowerCase()).toBe(BRAND_LAUNCHER_BACKGROUND_COLOR.toLowerCase());
   });
+
+  it('insets the adaptive foreground so launcher masks do not clip the cat face', async () => {
+    const foregroundPath = resolve(RES_DIR, 'mipmap-xxxhdpi/ic_launcher_foreground.png');
+    const { data, info } = await sharp(foregroundPath).ensureAlpha()
+      .raw()
+      .toBuffer({ resolveWithObject: true });
+    const topCenterOffset = (0 * info.width + Math.floor(info.width / 2)) * info.channels;
+    const topCenterAlpha = data[topCenterOffset + 3];
+
+    expect(topCenterAlpha).toBeLessThan(32);
+  });
 });

toju-app/src/app/infrastructure/mobile/logic/mobile-android-launcher-icon.rules.ts

@@ -8,6 +8,26 @@
 /** Brand purple sampled from `images/icon-new-rounded.png` (the circle behind the cat). */
 export const BRAND_LAUNCHER_BACKGROUND_COLOR = '#4A217A';
 
+/** Adaptive-icon foreground canvas size in dp (Android spec). */
+export const ADAPTIVE_ICON_CANVAS_DP = 108;
+
+/** Visible safe-zone diameter inside the adaptive-icon foreground layer (Android spec). */
+export const ADAPTIVE_ICON_SAFE_ZONE_DP = 66;
+
+/** Scale the brand mark to fit inside the adaptive-icon safe zone instead of full-bleed. */
+export const ADAPTIVE_FOREGROUND_ICON_RATIO = ADAPTIVE_ICON_SAFE_ZONE_DP / ADAPTIVE_ICON_CANVAS_DP;
+
+/** Legacy square/round launcher bitmaps use the same inset so circular masks do not clip the cat. */
+export const LEGACY_LAUNCHER_ICON_RATIO = ADAPTIVE_FOREGROUND_ICON_RATIO;
+
+/** Splash art keeps the brand mark smaller than the screen so ears and cheeks stay visible. */
+export const SPLASH_ICON_RATIO = 0.32;
+
+/** Return the brand icon pixel size for a square canvas at the given scale ratio. */
+export function resolveIconPixelSize(canvasPx: number, ratio: number = ADAPTIVE_FOREGROUND_ICON_RATIO): number {
+  return Math.round(canvasPx * ratio);
+}
+
 /** Density buckets Android resolves launcher icons from. */
 export const ANDROID_ICON_DENSITIES = [
   'mdpi',

tools/generate-android-app-icons.mjs

@@ -23,6 +23,11 @@ const RES_DIR = resolve(REPO_ROOT, 'toju-app/android/app/src/main/res');
 const BRAND_BACKGROUND = { r: 74, g: 33, b: 122 };
 const BRAND_BACKGROUND_HEX = '#4A217A';
 
+/** Adaptive-icon safe zone (66dp inside 108dp). Keep in sync with the rules file. */
+const ADAPTIVE_FOREGROUND_ICON_RATIO = 66 / 108;
+const LEGACY_LAUNCHER_ICON_RATIO = ADAPTIVE_FOREGROUND_ICON_RATIO;
+const SPLASH_ICON_RATIO = 0.32;
+
 /** Legacy square/round launcher bitmap edge length per density. */
 const LEGACY_ICON_PX = { mdpi: 48, hdpi: 72, xhdpi: 96, xxhdpi: 144, xxxhdpi: 192 };
 
@@ -65,20 +70,36 @@ async function centeredIconOnBackground(width, height, iconRatio, background) {
     .toBuffer();
 }
 
+/** Compose the brand icon centred on a transparent canvas for adaptive foreground layers. */
+async function centeredIconOnTransparentCanvas(canvasSize, iconRatio) {
+  const iconSize = Math.round(canvasSize * iconRatio);
+  const icon = await squareIcon(iconSize);
+
+  return sharp({
+    create: {
+      width: canvasSize,
+      height: canvasSize,
+      channels: 4,
+      background: { r: 0, g: 0, b: 0, alpha: 0 }
+    }
+  })
+    .composite([{ input: icon, gravity: 'center' }])
+    .png()
+    .toBuffer();
+}
+
 async function generateLauncherIcons() {
   const written = [];
 
   for (const [density, size] of Object.entries(LEGACY_ICON_PX)) {
-    const bitmap = await squareIcon(size);
+    const background = { ...BRAND_BACKGROUND, alpha: 1 };
+    const bitmap = await centeredIconOnBackground(size, size, LEGACY_LAUNCHER_ICON_RATIO, background);
     written.push(await writePng(bitmap, `mipmap-${density}/ic_launcher.png`));
     written.push(await writePng(bitmap, `mipmap-${density}/ic_launcher_round.png`));
   }
 
-  // Adaptive foreground: full-bleed circle on transparent canvas. The adaptive
-  // background layer paints the brand purple, so the masked result matches the
-  // source disc on every launcher mask shape.
   for (const [density, size] of Object.entries(FOREGROUND_PX)) {
-    const foreground = await squareIcon(size);
+    const foreground = await centeredIconOnTransparentCanvas(size, ADAPTIVE_FOREGROUND_ICON_RATIO);
     written.push(await writePng(foreground, `mipmap-${density}/ic_launcher_foreground.png`));
   }
 
@@ -97,14 +118,13 @@ async function generateSplashScreens() {
   const background = { ...BRAND_BACKGROUND, alpha: 1 };
 
   for (const [density, [portW, portH]] of Object.entries(SPLASH_PORTRAIT)) {
-    const portrait = await centeredIconOnBackground(portW, portH, 0.4, background);
-    const landscape = await centeredIconOnBackground(portH, portW, 0.4, background);
+    const portrait = await centeredIconOnBackground(portW, portH, SPLASH_ICON_RATIO, background);
+    const landscape = await centeredIconOnBackground(portH, portW, SPLASH_ICON_RATIO, background);
     written.push(await writePng(portrait, `drawable-port-${density}/splash.png`));
     written.push(await writePng(landscape, `drawable-land-${density}/splash.png`));
   }
 
-  // Base fallback splash mirrors the landscape mdpi geometry (Capacitor default).
-  const base = await centeredIconOnBackground(480, 320, 0.4, background);
+  const base = await centeredIconOnBackground(480, 320, SPLASH_ICON_RATIO, background);
   written.push(await writePng(base, 'drawable/splash.png'));
 
   return written;