I'm using Ubuntu 12.04.1 with Gnome Classic. I added some launchers on the top panel, but they are placed too tightly (also take a look at separators, they aren't really separate anything):
Can I increase the spacing between the launchers?
AFAIK this can be done by the editing of ~/.config/gtk-3.0/gtk.css. I've managed to toggle bold font setting for the panel this way. But I haven't found which parameter have an influence on the launcher and applet spacing.
Also the size of icons seems too big for me – they occupy all place from the top to the bottom of the panel, without any border. They were smaller when I was using 10.04. Is there any way to reduce their size also?