diff --git a/mobile/app.json b/mobile/app.json
index 9210df5..ccc0189 100644
--- a/mobile/app.json
+++ b/mobile/app.json
@@ -22,12 +22,12 @@
       "package": "com.goon.mobile",
       "adaptiveIcon": {
         "foregroundImage": "./assets/adaptive-icon.png",
-        "backgroundColor": "#0E1018"
+        "backgroundColor": "#15110D"
       }
     },
     "splash": {
       "image": "./assets/splash.png",
-      "backgroundColor": "#0E1018",
+      "backgroundColor": "#15110D",
       "resizeMode": "contain"
     },
     "web": {
diff --git a/mobile/assets/adaptive-icon.png b/mobile/assets/adaptive-icon.png
index 1236374..8609952 100644
Binary files a/mobile/assets/adaptive-icon.png and b/mobile/assets/adaptive-icon.png differ
diff --git a/mobile/assets/favicon.png b/mobile/assets/favicon.png
index 93b6342..b86123a 100644
Binary files a/mobile/assets/favicon.png and b/mobile/assets/favicon.png differ
diff --git a/mobile/assets/icon.png b/mobile/assets/icon.png
index 069d775..6590b75 100644
Binary files a/mobile/assets/icon.png and b/mobile/assets/icon.png differ
diff --git a/mobile/assets/splash.png b/mobile/assets/splash.png
index 03074ab..56ddcaf 100644
Binary files a/mobile/assets/splash.png and b/mobile/assets/splash.png differ
diff --git a/mobile/src/components/GoonWordmark.tsx b/mobile/src/components/GoonWordmark.tsx
index c846268..2691c7b 100644
--- a/mobile/src/components/GoonWordmark.tsx
+++ b/mobile/src/components/GoonWordmark.tsx
@@ -46,31 +46,32 @@ export function GoonWordmark({ size = 26, color = theme.fg, mono = false }: Word
 }
 
 /**
- * Monogram — koncentryczny ring + wypełniona kropka (oxblood). Czyta się jako
- * "o" z wordmarku, motyw soczewki/oka (watching) bez dosłowności. Czysty SVG
- * (bez fontu) — używany do generowania app-icon / adaptive-icon / splash PNG,
- * gdzie custom font nie jest dostępny.
+ * Brand mark — double-o ("oo"): dwa ringi obok siebie z oxblood dotem w środku
+ * każdego. Czyta się jako "oo" z goon / para soczewek-oczu (watching). Spójny z
+ * wybranym app-icon (2026-05-30, AI-gen interlocked oo). Czysty SVG (bez fontu)
+ * — używany na Login + jako wzór dla raster app-icon.
  *
- *   <GoonMark size={48} />
+ * `size` = szerokość; wysokość = size * 0.56 (proporcja 2 ringów obok siebie).
+ *
+ *   <GoonMark size={88} />
  */
 export function GoonMark({
-  size = 48,
+  size = 88,
   ringColor = theme.fg,
   dotColor = theme.accent,
-  bg,
 }: {
   size?: number;
   ringColor?: string;
   dotColor?: string;
-  /** Opcjonalne tło (dla icon — np. theme.bg). Pominięte = przezroczyste. */
-  bg?: string;
 }) {
-  // viewBox 100×100. Ring: cx50 cy50 r36, stroke 11. Dot: r15 wypełniony.
+  // viewBox 200×112. Dwa ringi: cx 56 i 144, cy 56, r 44, stroke 13. Doty r 16.
+  const height = size * (112 / 200);
   return (
-    <Svg width={size} height={size} viewBox="0 0 100 100" fill="none">
-      {bg ? <Circle cx={50} cy={50} r={50} fill={bg} /> : null}
-      <Circle cx={50} cy={50} r={36} stroke={ringColor} strokeWidth={11} fill="none" />
-      <Circle cx={50} cy={50} r={15} fill={dotColor} />
+    <Svg width={size} height={height} viewBox="0 0 200 112" fill="none">
+      <Circle cx={56} cy={56} r={44} stroke={ringColor} strokeWidth={13} fill="none" />
+      <Circle cx={56} cy={56} r={16} fill={dotColor} />
+      <Circle cx={144} cy={56} r={44} stroke={ringColor} strokeWidth={13} fill="none" />
+      <Circle cx={144} cy={56} r={16} fill={dotColor} />
     </Svg>
   );
 }
diff --git a/mobile/src/screens/LoginScreen.tsx b/mobile/src/screens/LoginScreen.tsx
index d6c310e..7ebbcb9 100644
--- a/mobile/src/screens/LoginScreen.tsx
+++ b/mobile/src/screens/LoginScreen.tsx
@@ -58,9 +58,9 @@ export function LoginScreen({ onAuthenticated }: Props) {
         keyboardShouldPersistTaps="handled"
       >
         <View style={styles.brandBlock}>
-          <GoonMark size={44} bg="transparent" />
-          <View style={{ height: 14 }} />
-          <GoonWordmark size={44} />
+          <GoonMark size={92} />
+          <View style={{ height: 16 }} />
+          <GoonWordmark size={40} />
           <Text style={styles.subtitle}>self-hosted scene catalog</Text>
         </View>