Prompted a variation of ACJs prompt, "Write Python code that can generate an image that contains all 16777216 colors of the RGB color model exactly once. Every pixel needs to be a different RGB value. The image should be 4096 by 4096 pixels. Organize the colors in a logical way, diagonally by brightness, top-left corner to bottom-right corner. Each diagonal should be at the same brightness and colors should be ordered so the colors closest to each other in the color cube are nearest to each other in the final image." It took a few corrections to get an image that met the requirements, but it did a unique image, albeit not quite what I prompted.