Thanks for the useful feedback, it's much appreciated. Buttons are now full background colors, looks much better. It also should now be easier to see which node

Thanks for the useful feedback, it's much appreciated. Buttons are now full background colors, looks much better. It also should now be easier to see which nodes have children. Please have a look at this issue: https://github.com/davidgilbertson/know-it-all/issues/8 https://github.com/davidgilbertson/know-it-all/issues/8 I need to have a think about (and see what other people think) how to deal with inheritance of 'scores'. If you click "I don't care" to WebGL, it should trickle down, but probably not for "I know it". So I need to cover the different scenarios but stay intuitive. I also need to have a think about how to show some information about what's happening below an item in the tree. Maybe just a % unrated for each row or something. Regarding flashcards, love the idea, don't love the amount of work it would be :) I left a reply to a comment on medium about this if you're interested.