in ResizeButton add paintEvent: now before paint itself a button check isVisible and if that is true paints itself with a blue rect
in ResizeButton add paintEvent: now before paint itself a button check isVisible and if that is true paints itself with a blue rect

develersrl/rooms,develersrl/rooms,develersrl/rooms,develersrl/rooms,develersrl/rooms,develersrl/rooms,develersrl/rooms