gistfile1.txt

from kivy.lang import Builder
from kivy.base import runTouchApp

root = Builder.load_string("""
BoxLayout:
    id: main_view
    orientation: 'horizontal'
    Widget:
        id: sidebar
        size_hint_x: None
        width: dp(100)
        canvas:
            Color:
                rgba: 1, 0, 0, 1
            Rectangle:
                pos: self.pos
                size: self.size
    Widget:
        id: play_view
        size_hint_x: None
        canvas:
            Color:
                rgba: 0, 1, 0, 1
            Rectangle:
                pos: self.pos
                size: self.size

""")
                        
runTouchApp(root)