Apparently schematics are wrong, then:
void galaxian_state::frogger_draw_background(bitmap_rgb32 &bitmap, const rectangle &cliprect) { /* color split point verified on real machine */ /* hmmm, according to schematics it is at 128+8; which is right? */ background_draw_colorsplit(bitmap, cliprect, rgb_t(0,0,0x47), 128+8, 128-8); }
Putting the split back at 128 make MAME match the PCB video.
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