I'd like to make the user able to change the background color of a webpart. I already found how to achieve this (putting some CSS in the web part page, using the web part Id), but the problem is: how to make the user able to do that easily?
So I was thinking about customizing the default web part editor; I've found a lot of examples on how to customize it for a SPECIFIC, CUSTOM web part, but that's not what I'm looking for.
What I'd like to do is to CUSTOMIZE the EDITOR that is shown for ALL the webparts.
Is that possible? If it is, can anyone please give me a clue on how to do that?
Thanks in advance.