Limitations

Due to the limited memory of the RP2040 processor, the video output is limited to 8 bits. Specifically, it outputs in RGB332 format, which is a colour encoding format that uses 3 bits for red, 3 bits for green, and 2 bits for blue, resulting in a total of 8 bits per pixel.

The limited bit-depth for each color channel means that there are fewer possible shades of each colour, but especially blue (only 4 different blues). This means colour gradients will display severe banding.

Image examples to be added here