LoomScreen.extractBackground (slot icons, scroller, pattern buttons
with their swatches and tooltip, the result banner or the six-layer
error) and CrafterScreen's background, disabled slots and redstone
arrow become screen_layout calls the game paints. A new harness runs
vanilla's screens on stand-in menus and compares 1,600 call lists.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>