10 themes are created with the 'Dynamic' feature of the Figma Material Theme Builder, which uses an image to determine the colors.
The other 12 themes are created using the 'Custom' function of the Figma Material Theme Builder, where I specified the primary color. I used the rainbow colors from the website CIElab.io: red, volcano, orange, gold, yellow, lime, green, cyan, blue, geek blue, purple, and magenta.
Examples created with the 'Dynamic' theme builder feature have the prefix 'D'
Examples created with the 'Custom' theme builder feature have the prefix 'C'.
You may see some similarities between the examples below as a result of the Material 3 calculations The Material 3 color picker can create the same primary color, although different colors are picked by the user. I have shown some examples here