buttons in a newTabBar dont fill the full width of the bar

the buttons in the newtabBar do not fill the full space of the tabBar, not filling by
about 20 units on either side. the empty space is filled either the default image or fill. i have added additional images and.or made them wider in the button options. the result is the buttons reduce in width to fill the space.

looking for solution or explanation. i like the tabBar widget.

this would be easier to explain if i could attach an screen grap.

[import]uid: 147966 topic_id: 33334 reply_id: 333334[/import]