Offset for text in buttons

i believe there's been an fairly recent (and great) addition to folder thumbnails in the skins to be able to set the offset of the thumb in the folder texture?
     <thumbwidth>64</thumbwidth>
     <thumbheight>64</thumbheight>
     <thumbposx>4</thumbposx>
     <thumbposy>10</thumbposy>
would it be possible to get this for buttons and the text in those aswell?
and when i'm at it; different offsets for infocus and notinfocus?
/floink