Screen_v1: Comment ROMv1's Easter Egg code and document the image format
Screen_v1: Comment ROMv1's Easter Egg code and document the image format

kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom