Hi @Pavlo, after upgrade to 2.13.3 button design has changed - black border line removed when the button is pressed.
I had an earlier post after you introduced button resize function which says no border line after button resized: New Android Release 2.8.0
Now, no border line in case of any size of button (when pressed), but button widget looks much better with border.
I know this is not a functional problem just design question, so low priority level, but I would prefer previous button design (border shown when pressed) for all size of button widget.
Thank you!
aquarius