just figured that this other thread with the "same" question is actually dealing with unity 2d.
But I am wondering: how on earth do I change the launcher size using 12.04 and "normal" unity?
I know of two options:
a) previously, one would use the compiz config manager, unity desktop plugin
b) Google tells me that there is a new slider in the appearance settings
on a) ... changing that number in the config manager - doesnt have any effect.
on b) ... there is no such slider when I open that settings window
So, how on earth I am supposed to change the launcher icon size?