I was wondering if it would be possible to make the colors set in the release filter activate based on a priority feature or something.

Say for example I have adventure, comedy, lolicon, supernatural, and shoujo colored.

You could set each genre to a certain number. So if I wanted Adventure to come out on top I'd set the color to red and the priority to 1. Lolicon set to 2, shoujo to 3, etc.

That way it first looks for the Adventure genre. If it sees that the series has the genre Adventure it automatically sets it to the color red because of its priority. If Adventure is not present it goes to whatever is set to number 2 which in the example is lolicon. If that isn't present it looks for number 3.

If not, how about an option where you can say "if genre A and genre B are on a series set the color to blue". You'd be able to add combinations.

I like your suggestion, hope it gets looked into.