> …32 colors and want to update a single pixel, you have to write four bytes… A small correction, you have to write 5 bytes (or 16-bit words, same performance)

> …32 colors and want to update a single pixel, you have to write four bytes… A small correction, you have to write 5 bytes (or 16-bit words, same performance). 4 bytes changed gets you only 16 colors.