title: Fixed window size for Kivy programs
body: <p>Is there any way to keep the window size for Kivy programs fixed? Fixed in the sense its window size cannot be increased or decreased. For example, I want a Kivy program whose window size is 500x500 and the end user cannot either change the window size or turn it into fullscreen. I tried setting the height, width, minimum_height and minimum_width all with same values and still I can change window size and fullscreen it.</p>