How to fix size

sir in have a little trouble where i create button i give it image with setBGImage() and then i set font and radius with :setStyle({ font = gr.newFonf("myfont.ttf", 3), radius = 20}) the problem is i set the height = 100 and width = 200 but the button height and width not set to 100 and 200 how to fix this sir.