Panics · P01 Primitives: init returns an error, a missing app icon logs and shows a broken picture

frontend/src/docs/icons.md

@@ -42,9 +42,9 @@ A name rule beats an extension rule, and both beat Ely's map.
 
 ## An app's own assets
 
-GPUI takes one asset source. An app with files of its own writes an `AssetSource` that answers its own paths and hands every other path to `Assets`. `init` panics unless `icons/check.svg` loads through it.
+GPUI takes one asset source. An app with files of its own writes an `AssetSource` that answers its own paths and hands every other path to `Assets`. `init` returns an error unless `icons/check.svg` loads through it.
 
-Use `Icon::from_path("app-icons/mark.svg")` to draw one of those SVG assets with Ely's themed sizing and color. It also accepts an owned `String` or `SharedString`. Paths are asset keys resolved by `AssetSource`; a path it lacks panics on first draw. SVGs render as single-color masks; `IconName` and `IconPicker` continue to list the bundled icons.
+Use `Icon::from_path("app-icons/mark.svg")` to draw one of those SVG assets with Ely's themed sizing and color. It also accepts an owned `String` or `SharedString`. Paths are asset keys resolved by `AssetSource`; a path it lacks logs an error on first draw and shows a red broken-picture icon. SVGs render as single-color masks; `IconName` and `IconPicker` continue to list the bundled icons.
 
 Compatible single-color SVGs can come from [Lucide](https://lucide.dev/), [Hugeicons](https://github.com/hugeicons/hugeicons), [Phosphor](https://github.com/phosphor-icons/core), [Remix Icon](https://github.com/Remix-Design/RemixIcon), or [Tabler](https://github.com/tabler/tabler-icons). The app supplies its chosen files and preserves their licenses; Ely does not download or register those catalogs.