It would be useful to have an optional color key feature in Graph mode with the ability to edit/assign a category title next to each color being used. It would also be great to choose where it lives on the screen (lower left or right vs top left or right) or perhaps it could also be draggable like the graph points. Thanks for considering!
This is an interesting feature suggestion. May I ask your specific use case for a color key, is this for learning different cards or for different topics?
Recently we added colors to the parent badges on cards, and we hope this helps colors be more useful for organisation and categorisation as well.