TAdvPageControl Tab Shapes

Please advise how to set the TAdvPageControl Tab Shapes as shown in the TAdvPageControl Feature Overview. There doesn't appear to be a TAdvTabShape (or equivalent) function with the component. Must one draw them 'manually' in the OnDrawTab event?

This is being set by a tab background bitmap.
See properties AdvPageControl.TabBackground / TabBackgroundActive, TabBackgroundColor

Ok, but where can I find these bitmaps? Or do I have to create them myself?

It is explained in this FAQ item

Thanks. However, I don't want to spend time producing Tab bitmaps and I would have hoped that there would have been a library of suitable ones to use off the shelf.

Sorry, we do not have a library at this time.
Creating such bitmap should be fairly easy & straighforward.