Finds palettes still on baserom.gba whose symbol name pairs with an
already-extracted graphic (<base>_Gfx / <base>_Pal), extracts them, and
re-renders the matching PNGs in colour instead of greyscale. ROM still
matches (make compare).
gEReaderBackground_Pals 0x81D20 0x200
gMainBoardEvoBanner_Pal 0x5221AC 0x200
gMainCatchModeBanner_Pal 0x5267CC 0x200
gMainBoardJirachiBanner_Pal 0x5269CC 0x200
gMainBoardTravel_Pal 0x526BCC 0x200
gRubyChinchouCatchBurstBanner_Pal 0x51956C 0x20
gRubyLotadCatchBurstBanner_Pal 0x51958C 0x20
gSapphireShroomishCatchBurstBanner_Pal 0x5195AC 0x1C0
The name pairing alone would not say which bank of a 0x200 palette
belongs to the graphic, so that was checked rather than assumed: in
seven of the eight only bank 0 is non-blank and the rest is zero
padding, which makes the choice unambiguous. gEReaderBackground_Pals
has banks 0 and 1 populated and bank 0 is the one embedded.
The PNGs are re-rendered through gbagfx rather than by rewriting the
PNG header. gbagfx uses the colour type as the signal for whether to
invert pixel values (see the comment in convert_png.c), so flipping a
greyscale PNG to indexed in place silently changes every index and the
built .4bpp with it. Going through the tool keeps both directions
consistent; each file was checked to rebuild its .4bpp byte-identically
before this was committed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Cyphgirl
ee1bf672d9
