Specifications Commodore 64 and 128
The sample screens shown above were converted from the 4 Color BSAVED Image in Fig. 1. Due to the lower resolutions in both the Commodore's standard native graphics display modes, Fig. 6 sacrifices colors to black and white where needed during conversion resulting in color loss. The colors remain intact when converting to the lower resolution 4 color mode, but some detail is lost.
Read more about this topic: BSAVE (graphics Image Format)