Initial commit.

.gitignore

+*~
+.idea

main.py

+from kivy.app import App
+from kivy.modules import inspector  # For inspection.
+from kivy.core.window import Window  # For inspection.
+
+
+class OrderApp(App):
+    def build(self):
+        inspector.create_inspector(Window, self)  # For inspection (press control-e to toggle).
+
+
+if __name__ == '__main__':
+    app = OrderApp()
+    app.run()

order.kv

+BoxLayout:
+    orientation: 'vertical'
+    canvas.before:
+        Color:
+            rgba: (0.0, 0.1, 0.3, 1.0)
+        Rectangle:
+            pos: self.pos
+            size: self.size
+    Label:
+        text: 'A Restaurant'
+        font_size: sp(48)
+    BoxLayout:
+        orientation: 'horizontal'
+        Label:
+            text: 'How much food?'
+            size_hint: (None, 1.0)
+            size: self.texture_size
+            padding: (sp(12), 0)
+        Slider:
+            range: (0, 100)
+    Label:
+        text: f'Your total is $0.00'
+        font_size: sp(24)