Add Screen control features: Screen tab in sidebar, Kivy script, and backend logic

screen_control/screen.py

@@ -0,0 +1,18 @@
+
+import os
+os.environ['KIVY_GL_BACKEND'] = 'gl'
+from kivy.app import App
+from kivy.uix.label import Label
+from kivy.core.window import Window
+
+# Set background color to black (optional, but good for screens)
+Window.clearcolor = (0, 0, 0, 1)
+
+class ScreenApp(App):
+    def build(self):
+        # Create a label with large text "Bonjour" centered on the screen
+        label = Label(text='Bonjour', font_size='150sp', color=(1, 1, 1, 1))
+        return label
+
+if __name__ == '__main__':
+    ScreenApp().run()