That had never occurred to us. However, we consider ourselves an Internet Desktop, so like a PC we want to allow users some customization (possibly including their own design themes). Under the Settings we may include that as an option if there is enough demand for it, but we also believe in fast loading pages, so that would be one drawback.
Is that for your benefit, or your users? Either way is a good answer, I just think you should know the answer. The word "believe" prompted this comment.
If you have icons 1-10 on tab A, and icons 11-20 on tab B, then tab B loads really, really slow, i.e. never until you click it. So you have fast access to icons 1-10 and really slow access to icons 11-20.
An option in the Settings would (eventually) be good.
