Originally Posted by jibi
It's a bug that has been around for the last few versions. Third-party themes work fine, though.
Thanks for this, I hadn't noticed the problem with other versions. To those that read this, I am not complaining as I know running Betas can be buggy but I could not tell if this was a fundamental change in the way 4.5 was handling themes or something else. Thanks for clarifying it is something else.