diff --git a/plugins/fake-profile-themes-and-effects/src/ui/components/Icon.ts b/plugins/fake-profile-themes-and-effects/src/ui/components/Icon.ts
index 39bc13e..2c2828d 100644
--- a/plugins/fake-profile-themes-and-effects/src/ui/components/Icon.ts
+++ b/plugins/fake-profile-themes-and-effects/src/ui/components/Icon.ts
@@ -10,6 +10,18 @@ export interface IconProps extends Pick<ImageProps, "accessible" | "accessibilit
     disableColor?: boolean | undefined;
 }
 
+// Confirmed live: the eager version of this crashed with "Cannot read property 'LARGE' of
+// undefined" - findByProps("IconSizes") hadn't resolved yet at module-load time, so this fell
+// through to the bare `() => null` fallback, which has no .Sizes property at all for callers
+// like `Icon.Sizes.LARGE` to read. Falling back to a real, static SizeKey map instead of an
+// empty function means Icon always has a valid .Sizes even before the real module resolves.
+const FALLBACK_SIZES: Record<SizeKey, string> = {
+    EXTRA_SMALL_10: "extra_small_10", EXTRA_SMALL: "extra_small", SMALL: "small", SMALL_20: "small_20",
+    MEDIUM: "medium", LARGE: "large", CUSTOM: "custom", REFRESH_SMALL_16: "refresh_small_16", SMALL_14: "small_14",
+};
+
+const resolvedIcon = (findByProps("IconSizes") as Record<string, any> | undefined)?.default;
+
 export const Icon: ComponentType<IconProps> & {
     Sizes: Record<SizeKey, string>;
-} = (findByProps("IconSizes") as Record<string, any> | undefined)?.default ?? (() => null);
+} = resolvedIcon ?? Object.assign(() => null, { Sizes: FALLBACK_SIZES });