All graphics are now png.
Some files were split out of necessity:
- gfx/trade.2bpp -> gfx/game_boy.norepeat.png gfx/link_cable.png
- gfx/red/introfight.2bpp -> gfx/red/intro_nido_{1,2,3}.6x6.png
- gfx/blue/introfight.2bpp -> gfx/blue/intro_purin_{1,2,3}.6x6.png
yenatch