Chat Colour and Visibility
New to Mixer, the UI of the site is really nice, much better compared to Twitch, however, one area that I thought that you could work on is the chat.
The main issue for me is the chat colours you have set in place for specific roles (streamer, mod, regular) and owners for some reason. Like, there's no reason to have colours for owners, you could just use an icon instead. The issue with this is that the chat becomes a bit difficult to read or at least annoying for me and a couple of friends I asked as well.
Mixer : http://prntscr.com/onkoi6
The Twitch UI black design with chat of varying colours makes it easier to read each individual message but with Mixer's navy UI with BLUE CHATTERS as the majority makes it a bit difficult. Just a thought, would probably be better to add colons and different colours.