2.) Two-Toned Leaves
Two-toned leaves usually have split coloring in a relatively straight line. This mutation often affects just one or two leaves on the whole plant, though sometimes you’ll get a whole stem or part of the plant that displays this characteristic.
The two-toned leaves don’t seem to have much effect on anything, but it’s kinda cool looking!
I believe this happens due to a type of “variegation” (wikipedia link) and may be due to “sectorial chimera”. Other plants besides cannabis plants can have this happen, too!
More commonly, half of the leaf will turn light yellow or even white.
Here’s an example of a cola that is split down the middle between purple and green