One of the things that people new to kanban don’t get is, in a “ready” state, you are meant to set priority by dragging the card to the top of the column. As a kind of “training wheels” for a team new to using kanban, it would be nifty if we could put a kind of ranking indicator on cards.
I suppose if, there were a “formula field” that simply allowed its color to be set based on another field’s setting or, a calculation, then a polygon could be added to the card, to indicate that.
For example, the screenshot shows one way such an indicator could be used. The top card’s polygon’s opacity is 0%, then the next’s is say 33%, then the next’s is 66%. Like that.