This issue has been discussed several times in summer in the traсker, but has not been resolved.
About a week I'll write tikket with access to my hosting. It will be possible to conduct experiments there.
I can not update my forum because of this problem.
In order to apply the decision of ibresource, I must have to once again buy a license, but now they have.
And updates from ips will not be possible in the future.
I do not have difficulty in adding additional backgrounds on the profile, blogs, and wherever I need.
In 3.0 the structure of patterns is much easier, so do not see any problems with coding. You can add additional tags such as div, but you can also add additional classes in the old tags.
Profile. Added a new tag with the background, and added new classes in the old tags.
Blogs. Backgrounds are added to existing classes
Member list, Profile. Tabs made only with css with adding backgrounds.
I like the possibility of coding in ipb 3.0. Much can be done simply by using css.
I do not think it necessary to add the wrapper. Either it is, but without the background, or we can easy to create own.
Thank you, Rikki.