Custom TV program genre filters / genre highlighting

I’d like to have the ability to highlight custom genres. Ideally, this would implemented by allowing the user to associate TV program genres with colors of their choosing and for the EPG grid to highlight those programs with the colors accordingly.

An alternate way of addressing this would be to allow custom filters to add to the out-of-the-box filters available in the left nav (Prime Time, TV Shows, Movies, Sports).

For example, I like to have children’s programming highlighted in my guide (I’m coming from MediaPortal where I could do this) so that my family can easily find children’s programming. I also enjoy watching the News so I like to have news programs highlighted to catch my eye. This will be different for everyone based on preferences, which is why I’m requesting customization of genre->color mapping.