Update

Author: Novfensec

client/main.py

@@ -49,10 +49,13 @@ def __init__(self, *args, **kwargs) -> None:
 
     def build(self) -> UI:
         self.manager_screens = UI()
-        self.apply_styles()
         self.generate_application_screens()
         return self.manager_screens
 
+    def on_start(self):
+        self.apply_styles()
+        return super().on_start()
+
     def apply_styles(self, *args) -> None:
         Window.clearcolor = self.background
         icon_style = "Dark" if self.theme in ["White", "Gray10"] else "Light"