The FBML Theme

The FBML Theme allows your drupal install to serve up content to facebook in a facebook friendly way. "Facebook Markup Language (FBML) is an evolved subset of HTML with some elements removed, and others which have been added that are specific to Facebook." A list of FBML tags is available on the Facebook Developers wiki.

The FBML theme is written in FBML so that most of this conversion is done for you, but beware! Embedded links, images, and other content such may not function correctly because it isn't converted to an acceptable FBML. You may see errors at the bottom of your canvass page describing problematic tags.

You can change the FBML Theme, or write a new one as you need, to get a different look for your canvas page.