The interactive replacement for the legacy Sheet -> GIMP/Script-Fu pipeline:
WallpaperMakerForm (tray -> "Wallpaper maker") renders the profile wallpaper
live via SkiaOverlayRenderer, outlines all 119 template cells, and lets any
cell -- including the heading/banner cells the button editor cannot reach --
be clicked and retitled with debounced re-render. Clicks on stacked cells
cycle through the regions at that pixel (OverlayHitTester, unit-tested);
stacking is legitimate chroma-split display encoding. Imports a legacy .data
sheet row (with a game picker for multi-row sheets), exports the PNG, and can
apply the desktop wallpaper immediately to the same per-profile path the
runtime uses. Prompts for and remembers AppConfig.OverlayTemplatePath on
first use. PLAN.md: record this + the completed Phase 6 deploy package.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>