I have just added a new TFrame to my form. For some reason, the TFrame is drawn with a black border around it at runtime. At design time, the border does not show.
Place the TsFrameProvider component to the frame in design-time and change sFrameAdapter.SkinData.SkinSection property to 'MENUITEM'. Borders will not be drawn in this case.
You can change a looking of control by using of this property.