How to change button shape?

[Till Harbaum / Lists]

Hi,

hildon buttons can change their shape and their corners aren't always round. One example are those three toggle buttons in the top row of the calender menu. This particular type of reshape seems to happen magically once those buttons are inside a hbox.

But there's also the popup keyboard with the "abc" button which doesn't show the round corners at the bottom. I have a similar setup and also want those bottom corners to not be round. How is this accomplished?

How can i influence the shape of such buttons explicitely?

Till