Since 2.02v we have themes for widgets.
If you want to see how themes can look like check our free themes category.
Navigation to "System configuration" -> "Live help configuration" -> "Import new theme" in this window just uploade new theme.
Theme argument is /(theme)/<theme_id> so you can just manually write what theme should use. E.g index.php/chat/startchat/(theme)/2
Just send it to me. email@example.com
Developing application takes a lot of time. You can support application by donating. There is no company behind this application and it takes away my free time. Every donation matters and does not matter how small it is!