You can change the colors of a custom channel, like one you've created or joined, but does not appear to be an option for default channels like Broadcast or Looking for Group. Is there some kind of file I can edit or install, or a hidden/secret slash command, or anything that will let me change the colors of a chat channel? Some of them actually cause me pain to look at, and others are virtually invisible. Most are okay but I'd really like to use all of them.