Hello, I am currently learning a couple of languages, and two aspects I struggle with greatly are grammatical cases in European languages, or tones in several asian languages. In particular, I am interested in Russian and Chinese, but I think overall this would be a useful feature for any language. one of your rival apps encodes this information into the subtites for a language that is not tonal, but merely includes the tones to assist with natural sounding pronunciation.
if this information could be color coded as an option in the subtitles, that would greatly enhance my ability to recall and possibly over time and help crystallize what I have already learned. this information is available in dictionaries, so I believe it would be fairly easy to code. I believe this feature would be of use to many others as well, given that these two aspects are particularly notorious for causing problems for many people.
Thank you for your time.