Update v2.1 now available: GenesisPlus

I added a double sized scanline mode and border option. The double sized scanline mode depends on the Ambient screen resolution being high enough to support this. 1024x768 is enough for GameGear 2x mode with border disabled. You will need at least 1280x960 for SMS or Genesis/MegaDrive 2x mode. If screen resolution is not enough to fit it will revert back to normal scanline mode.