title: Kivy image button stretching
body: <p>I'm trying to make a button with an image. However the image is stretched out. Is there a way I can make it a "fixed position", so whenever the Resolution changes, it won't get stretched out (using python)?</p>
  
  <pre><code>self.add_widget(Button(background_normal=('Image.png'),size_hint_x=(0.5),size_hint_y=(0.3),pos_hint={"x":0.3, "top":0.7}))
  </code></pre>