horizon_client::pack_screen ports PackSelectionScreen, its two
TransferableSelectionLists and the ConfirmScreen of an incompatible pack as
vanilla's state machine (clicks, wheel, search typing, focus, selection,
scroll) and gives its GUI calls; screen_draw holds the widgets (StringWidget,
MultiLineTextWidget, Button, a font-aware EditBox port) and StringSplitter's
line splitting with legacy codes. Pack components keep their legacy codes and
style fields. tools/test_pack_screen_parity.py runs a real
PackSelectionScreen through the same actions: 1500/1500 cases match.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Ludovic Marie