My 16x16px icon got scaled down to about 10px in the toolbar.
What's the magic here?
I would like to be able to tell you why the icons are the size they are,
but the icon drawing code we inherited from Sodipodi is scary and nobody
quite understands it... :P
I'll CC the devel list in case perhaps the gtkmmification team has made
any breakthroughs studying and/or rewriting that code.