Antialiased smooth round rect but with different colors in/out-side

[rradomir]

Hi, this can be considered as proposition to be done in future. So I wanted to create sort of buttons, with round frame and background. If I select one of buttons, there should be bolder frame and I achieved this by drawSmoothRoundRect, but I can only select one background.
No specified background (it is white):

Black background:

So I think it would be nice to define inner and outer background to antialias :) or to turn off aliasing?

[Bodmer]

I will add to the rather long TODO list.

Adding a small background gap between the inner and outer zones is a potential workaround. I used this approach for meters: