I don't know if it's a problem with audacious or with Clearlooks theme. Every skin, except default seems to work fine, if I select default, however, background in the settings dialog goes black both in skin selection area and in the area where kind of setting is chosen. If I switch to Plugins page, background of listviews is also black.
Please be sure to include the minimal amount of information to make a bug report useful, such as: emerge --info emerge -pv audacious audacious-plugins The output produced by: audacious &> audacious.runlog.txt Attach the resulting file here as text/plain. Feel free to reopen the bug once you have done that.