This is for those also having a problem with the advanced smooth panel and transparent shadow shown at runtime though no shadow selected. I have checked diff in my update repository between the versions and came to the following to be undone to make my application work fine again (didn't want to roll back to previous version). Should make sense as my application is heavily using styles during runtime, so this is the "killer".
-------- advsmoothpanel.pas --------
procedure TAdvSmoothPanel.SetComponentStyle(AStyle: TTMSStyle);
begin
Fill.GradientType := gtVertical;
Fill.Glow := gmNone;
Fill.Rounding := 10;
Fill.ShadowColor := clGray;
>>>>>> UNDO THIS CHANGE >>>>>>>>> Fill.ShadowOffset := 10;
Cheers,
Matthias