Came to a consensus about combobox fonts on OS X.

darwin/combobox.m

@@ -113,7 +113,9 @@ uiCombobox *uiNewCombobox(void)
 	[c->pb setPreferredEdge:NSMinYEdge];
 	pbcell = (NSPopUpButtonCell *) [c->pb cell];
 	[pbcell setArrowPosition:NSPopUpArrowAtBottom];
-	// TODO font
+	// the font defined by Interface Builder is Menu 13, which is lol
+	// just use the regular control size for consistency
+	uiDarwinSetControlFont(c->pb, NSRegularControlSize);
 
 	// NSPopUpButton doesn't work like a combobox
 	// - it automatically selects the first item