Update main-ui.py to 75e7dde37c27eff7dbe154d3d8f3da9767ed3ef6

- Index/Total color
- Timezone Option
- AM/PM Option
- 24 Hour time option
- Hide clock option
- Fix centering of icons horizontally in places like apps
- Settings menu organization + more options
- Volume can now go to 0 in the menu
- Volume increment by 5
- Volume goes 0-20 to match Miyoo + icons of existing themes
- Extra theme options added
- Cleanup of how grid view is rendered/looks
- Ensure if a theme doesn't have an icon selected, the non selected icon is reused for selected (vs swapping to stock selected)
-    Hotkey handling
    -    Menu + Volume = Brightness up/down
-    Holding power button displays a prompt for shutdown

Author: chrisj951

source/pyui/main-ui/menus/games/game_system_select_menu.py

@@ -66,12 +66,14 @@ def get_images(self, game_system : GameSystem):
                 selected_icon_system_name_priority.append(os.path.join(game_system.game_system_config.get_emu_folder(),game_system.game_system_config.get_icon()))
 
         index = self.get_first_existing_path(icon_system_name_priority)
-        icon = icon_system_name_priority[index]
-        selected_icon = selected_icon_system_name_priority[index]
-        if not os.path.isfile(selected_icon):
-            selected_icon = icon
-            
-        return icon, selected_icon
+        if(index is not None):
+            icon = icon_system_name_priority[index]
+            selected_icon = selected_icon_system_name_priority[index]
+            if not os.path.isfile(selected_icon):
+                selected_icon = icon    
+            return icon, selected_icon
+        else:
+            return None, None
 
     def run_system_selection(self) :
         selected = Selection(None,None,0)