Comment 75 for bug 186382

@Chris Lord: I would agree that the link I posted is not related, however I do not agree that "metacity isn't even running" (as you are not the submitter of the bug). Compiz-decorator by default uses metacity unless you explicitly tell it otherwise. If you are effected by the 'pink title bar' or otherwise distorted title bars while running Compiz (ie advanced effects) then I am willing to bet emerald will fix this issue in the interim until updated packages are released.