Javascript to adjust cytube UI so that it better suits Twitch communities, replacing default chat with Twitch chat. (FFZ and BTTV emotes may not be supported.)
Open your cytube channel. Go to Channel Settings > Edit > Javascript > Copy-paste the contents of script.js into the text field (optional: change chat_host to your Twitch username) > Save JS > Close > Refresh page (if necessary) > Click "Allow" in pop-up that ask if you want to allow the script.