Shoutbox Customisation

Hi All,

I'd like to know how to customise the Shoutbox. I'd like to keep the shoutbox same dimensions, reduce the size of the avatar and bunch the test up a tiny bit. I've looked at modules -> boonex -> messenger -> template -> css main.css - but not sure if that is the only place that changes need to be made.

Is there any documentation on Messenger ?

Thank you, Brad