BitB/BitR/XPAL/STR# system fully reverse-engineered:
- BitB<id>.dat: big-endian uint16 width/height header
- BitR<id>.dat: raw 8-bit palette-indexed pixels (no header)
- XPAL<id>.dat: 256 RGB triplets, 8-bit per channel
- STR#<id>.dat: length-prefixed UI string tables
- Runtime patch: index 2 must be forced to black (0,0,0) --
the game engine overwrites this at runtime but stored values vary
Discovery: XPAL7A12 (correct render) vs XPAL7A1C (salmon background)
differ in only 3 palette entries (0,1,2); index 2 is the canvas black.
All 32 full-screen menu backgrounds, 57 vehicle HUD icons, cockpit
windshield frames, vehicle selection screens, and button strips now
render correctly. Documented in docs/FORMATS.md.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
pyr0ball
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