actually I think each plant has set of 3 colours wich can be called "red", "yellow" and "blue". I've dicovered that coping gif directrly from game will only copy "one layer of the plant colour". I've managed to breed quite a few and a result I was able to create this chart. Take note that this is not corect order and I'm not sure which one goes on top or if order of those layers differ betwen plants. I can only tell that i think those are 3 main colurs for each.