I use both these IDE's and my only annoyance is the size of the toolbar icons - they're too small for me. Is there any way to increase the size? I've poked around, and I haven't found a way to assign an icon larger than about 20x20.
I'm afraid there is no way to do it.
Note that many developers prefer to disable the toolbar completely to save the vertical screen space. It doesn't provide a lot of useful features and everything that it offers can be accessed via keyboard shortcuts.
Don't know the shortcut? Not a problem at all, use Help | Find Action (Ctrl+Shift+A).