white_rle: .byte $28 ; ysize=48
.byte $A0,$FF,$FF, $A0,$FF,$FF, $A0,$FF,$FF, $A0,$C3,$FF
.byte $A1
black_rle: .byte $28 ; ysize=48
.byte $A0,$FF,$00, $A0,$FF,$00, $A0,$FF,$00, $A0,$C3,$00