title: How to save a kivy canvas object as an image file
body: <p>I was wondering if it is possible to save a canvas that had several textures painted on it as an image file.</p>
  
  <p>I know I can save regular Image's (kivy.core.image) or Texture's (kivy.graphics.texture) as an image file with the save() function, so if I am able to convert the canvas to an Image or a Texture it should be easy, but so far I wasn't able to do this.</p>