It looks to me like you are using a custom colored version of DogmaX? Is that right? If so you are going ot need to edit it in SkinStudio and toy around until you find something that is the background color. I apologize I can't help more, but it has been along time since I edited the background color like that. I know it can be done though, you will just have to play around with Skin Studio to get it done.
