- // in Mac OS X the bitmap buttons can have only one of the few standard
- // sizes and if they don't, the OS rescales them automatically
- // resulting in really ugly images, so centre the image in a square of
- // standard size instead
+ // in Mac OS X the icon controls (which are used for borderless bitmap
+ // buttons) can have only one of the few standard sizes and if they
+ // don't, the OS rescales them automatically resulting in really ugly
+ // images, so centre the image in a square of standard size instead