Want to get a breakdown of the vocab from the review screen? Hover over a kanji, get its meaning.
Currently will show even before answering. Don’t cheat
06/08/2018 Update: Tooltips only exist after answering, and only on meaning. Couple options added. ‘Auto-show’, and ‘Only (auto-show) On Wrong’. Formatting changed as well to make multiple tooltips being open at the same time not look terrible. Enjoy, the two people who’ve installed this, if you’re even still using it.