Having the "image updating depending on media" might not be a thing you can do. The images would all have to be cached on Discord to be able to do something like that. It would be really nice to have a feature like this, but I don't think it'll be a possibility for a while.
Even still, this is an amazing resource and should definitely be added to the official Kodi addon repo.
I am aware of this issue. I am hopeful Discord will change some thing to make this possible. The work for this feature is mostly done if it will be possible in the future.
Having the "image updating depending on media" might not be a thing you can do. The images would all have to be cached on Discord to be able to do something like that. It would be really nice to have a feature like this, but I don't think it'll be a possibility for a while.
Even still, this is an amazing resource and should definitely be added to the official Kodi addon repo.