Script for pointing out on'yomi/kun'yomi mistake?

No one said I am not learning the other reading. The thing is I remember both the readings but forget which is used for which (both used for the same kanji). If I didn’t make it clear, I confuse between reading of WaniKani / Kanji / 毛 and WaniKani / Vocabulary / 毛 about which goes where. I remember both. No one is asking for a free pass here.

And instead of preaching, I just want to know if such script exists.

@Vanilla that was also a pretty pointless post since you didn’t understand my question even a single %.