One of the neat visual "extras" that we included in Telligent Community was the ability to add a background image or color to a "Generic Content" widget. This addition is utilized right on the default homepage in Telligent Community in the "Your Community" banner area:
You can customize the background and text here very easily to attractively display any kind of banner or welcome message to your community. Here's how:
The Telligent Community version of this video is posted here in the 5.x documentation: telligent.com/.../4263.aspx