diff --git a/cc-haha/desktop/public/app-icon.png b/cc-haha/desktop/public/app-icon.png
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diff --git a/cc-haha/desktop/src-tauri/icons/128x128.png b/cc-haha/desktop/src-tauri/icons/128x128.png
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diff --git a/cc-haha/desktop/src-tauri/icons/128x128@2x.png b/cc-haha/desktop/src-tauri/icons/128x128@2x.png
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diff --git a/cc-haha/desktop/src-tauri/icons/32x32.png b/cc-haha/desktop/src-tauri/icons/32x32.png
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diff --git a/cc-haha/desktop/src-tauri/icons/64x64.png b/cc-haha/desktop/src-tauri/icons/64x64.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square107x107Logo.png b/cc-haha/desktop/src-tauri/icons/Square107x107Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square142x142Logo.png b/cc-haha/desktop/src-tauri/icons/Square142x142Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square150x150Logo.png b/cc-haha/desktop/src-tauri/icons/Square150x150Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square284x284Logo.png b/cc-haha/desktop/src-tauri/icons/Square284x284Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square30x30Logo.png b/cc-haha/desktop/src-tauri/icons/Square30x30Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square310x310Logo.png b/cc-haha/desktop/src-tauri/icons/Square310x310Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square44x44Logo.png b/cc-haha/desktop/src-tauri/icons/Square44x44Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square71x71Logo.png b/cc-haha/desktop/src-tauri/icons/Square71x71Logo.png
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diff --git a/cc-haha/desktop/src-tauri/icons/Square89x89Logo.png b/cc-haha/desktop/src-tauri/icons/Square89x89Logo.png
index 119d532..f9d0842 100644
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diff --git a/cc-haha/desktop/src-tauri/icons/StoreLogo.png b/cc-haha/desktop/src-tauri/icons/StoreLogo.png
index c120975..3ba6c4e 100644
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diff --git a/cc-haha/desktop/src-tauri/icons/icon.png b/cc-haha/desktop/src-tauri/icons/icon.png
index 26b60c1..62b838c 100644
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diff --git a/scripts/rebuild-icons.py b/scripts/rebuild-icons.py
index a3bbed4..c1b8034 100644
--- a/scripts/rebuild-icons.py
+++ b/scripts/rebuild-icons.py
@@ -48,7 +48,13 @@ def main():
     }
     for path, size in sizes.items():
         path.parent.mkdir(parents=True, exist_ok=True)
-        base.resize((size, size), Image.LANCZOS).save(path, "PNG")
+        # Tauri's macOS bundler rejects non-RGBA PNGs ("icon ... is not RGBA").
+        # Force RGBA on every PNG output so the same files work for both
+        # Windows .ico embedding and macOS .icns embedding without per-platform
+        # branches. Alpha channel is fully opaque (255) since we paint on
+        # solid white in load_trimmed_square — the rounded glass edges of the
+        # logo retain their painted look on any background.
+        base.resize((size, size), Image.LANCZOS).convert("RGBA").save(path, "PNG")
         print(f"wrote {path} ({size})")
 
     # Windows Square*Logo / StoreLogo
@@ -66,7 +72,13 @@ def main():
     }
     for name, size in win_sizes.items():
         path = TAURI_ICONS / name
-        base.resize((size, size), Image.LANCZOS).save(path, "PNG")
+        # Tauri's macOS bundler rejects non-RGBA PNGs ("icon ... is not RGBA").
+        # Force RGBA on every PNG output so the same files work for both
+        # Windows .ico embedding and macOS .icns embedding without per-platform
+        # branches. Alpha channel is fully opaque (255) since we paint on
+        # solid white in load_trimmed_square — the rounded glass edges of the
+        # logo retain their painted look on any background.
+        base.resize((size, size), Image.LANCZOS).convert("RGBA").save(path, "PNG")
         print(f"wrote {path} ({size})")
 
     # ICO with multi-resolution.