Generating colour bars with minimal resources

[ppppenguin]

Should add that the vectors and transitions between them are better and cleaner than I've seen on a lot of PAL signals. "Rabbit ears" is the colloquial and self explanatory name for the loopy transitions seen on many PAL signals that come from analogue coders. Notably the burst. Over the years I've spent a lot of effort on getting accurate analogue PAL/NTSC coding in my designs. With digits, provided the DAC is OK and the numbers are right it just works.