attempting to build with setting the KIVY_GL_BACKEND only on the

condition that it's windows per this link:

 * kivy/kivy#3576 (comment)

I also wondered if the condiiton could be if windows && if there's an
issue, but someone else asked that question too.

 * kivy/kivy#3576 (comment)

The answer was, basicly, "no". Because to do that you'd have to restart
the app. I guess it's possible, but I'll try this for now *shrug*

Author: maltfield

src/main.py

@@ -1,10 +1,9 @@
 # this is needed for supporting Windows 10 with OpenGL < v2.0
 # Example: VirtualBox w/ OpenGL v1.1
-#import os
-#os.environ['KIVY_GL_BACKEND'] = 'angle_sdl2'
-
-from kivy import Config
-Config.set('graphics', 'multisamples', '0')
+import platform, os
+from kivy.config import Config
+if platform.system() == 'Windows':
+    os.environ['KIVY_GL_BACKEND'] = 'angle_sdl2'
 
 import kivy
 #kivy.require('1.0.6') # replace with your current kivy version !