Coloring: Wrong palette for some 2-bit games in PFX due to different source frames.

[MikedaSpike]

Black Rose pac file shows incorrect colors when playing on Zen Pinball FX same file works perfectly on VPX and on Zen Pinball FX3

DmdDevice.log 118.zip

[freezy]

The plugin has the same problem:

Looking more closely, it seems like BR (and maybe others) send 4-bit frames, which will obviously map to the wrong colors:

Left: PinMAME, right: PFX

[freezy]

Maybe we can enable some clever mapping to fix this, but I don't think that's a new problem, so I'll file this under enhancements.