# UI assets

## vendor_icons/

Generated placeholder icons (64×64 PNG) used to identify each
authenticator vendor in the entry list. They are intentionally generic —
a coloured rounded square with a single white initial — so they carry no
third-party trademark.

To use real vendor logos, replace any individual file in place. The
filename is the lookup key (matches `authenticator.Authenticator.Name()`):

- `google.png`
- `microsoft.png`
- `okta.png`
- `hotp.png`
- `battlenet.png`
- `steam.png`
- `qr.png` — fallback for entries with an unknown vendor

The recommended size is 64×64 PNG with transparent corners. Files are
embedded at build time via `//go:embed` in `internal/ui/vendor_icons.go`.

## app_icon.png

A 256×256 placeholder for the application window/tray icon. Gio v0.7 has
no runtime API to set the window icon — for Windows you need to embed a
`.ico` resource via `rsrc` or `goversioninfo` at build time. The
workflow is:

```
# 1. Regenerate app_icon.png (optional — only if you change the source)
go run ./tools/gen_icons

# 2. Bake a multi-resolution app_icon.ico from the PNG
go run ./tools/gen_ico

# 3. Compile the .ico into a COFF .syso that Go auto-links
GOPROXY=https://goproxy.cn,direct go run github.com/akavel/rsrc@latest \
    -ico internal/ui/assets/app_icon.ico \
    -o internal/ui/assets/rsrc_windows.syso
```

`rsrc_windows.syso` lives next to other assets so `go build` picks it up
without any extra build-tag wiring. The tray runtime loads the icon by
resource id 1 (the first (and only) icon rsrc emits); if loading fails
it falls back to `IDI_APPLICATION`.

To regenerate the placeholders, run:

```
go run ./tools/gen_icons
```