I’d like for there to be a way to “tag” cards within individual study sets a variety of colors. For example, if I have cards related to biology, I can tag them “green” and cards related to math can be “red”. When I go to study all of my cards, I want to be able to customize how many of each “tag” I want in my study session. For example, maybe I want to have a study session that’s mostly Biology with some Math as well. I would customize that I want 15 “green” cards and 5 “red” cards in my study session. That way, I can study an assortment of subjects all at once.