When learning a new kanji, there is an examples box showing vocabulary including that kanji, along with indicators for whether those words have audio on renshuu and whether the word is already included in some schedule.
It would be nice to also have the "known?" lightbulb icon/button shown directly in this list, without opening the dictionary.
I'll consider this, but at the moment, I generally avoid additional information (beyond what is already there) for the introduction panels just to keep them from being overloaded.
Perhaps if I add this in the future, I can do it behind a user setting so others who do not need the extra visual information can do without (like now).