I would like to see the lightbulb icon next to the plus icon in kanji related vocabulary. This is useful to see what terms are known, and also to mark terms as known.
Additionally, if it is possible to see all known words containing that kanji while learning it, that would be nice, especially for nonstandard readings. I recently learned the last kanji in a word with a nonstandard reading, then later seeing the term in a vocab quiz appear as kanji only was a bit puzzling.
The kanji I learned recently was 傷. The vocab word that surprised me was 火傷 (やけど). This term does show up in the common words when I look at the "full" kanji flashcard, but I must have missed it. If the lightbulb icon was present, surely I would have paid more attention to it.
Example learning flashcard where I'd like the lightbulb to appear next to the plus icon. In this screen, I would also like to be able to see all words that I know that contain this kanji, especially for the irregular readings.
Thanks for the suggestion - I'll definitely keep it in mind - I'm working on a lot of changes right now re: the interlinking between words and kanji, so it's quite timely that you're bringing this up.