Launcher: fix loading of mcicon (#1779)

Co-authored-by: black-sliver <59490463+black-sliver@users.noreply.github.com>

Launcher.py

@@ -146,7 +146,7 @@ def launch(exe, in_terminal=False):
 
 def run_gui():
     from kvui import App, ContainerLayout, GridLayout, Button, Label
-    from kivy.uix.image import Image
+    from kivy.uix.image import AsyncImage
     from kivy.uix.relativelayout import RelativeLayout
 
     class Launcher(App):
@@ -188,7 +188,8 @@ def run_gui():
                 button.component = component
                 button.bind(on_release=self.component_action)
                 if component.icon != "icon":
-                    image = Image(source=icon_paths[component.icon], size=(38, 38), size_hint=(None, 1), pos=(5, 0))
+                    image = AsyncImage(source=icon_paths[component.icon],
+                                       size=(38, 38), size_hint=(None, 1), pos=(5, 0))
                     box_layout = RelativeLayout()
                     box_layout.add_widget(button)
                     box_layout.add_widget(image)

setup.py

@@ -157,11 +157,22 @@ build_arch = build_platform.split('-')[-1] if '-' in build_platform else platfor
 
 
 # see Launcher.py on how to add scripts to setup.py
+def resolve_icon(icon_name: str):
+    base_path = icon_paths[icon_name]
+    if is_windows:
+        path, extension = os.path.splitext(base_path)
+        ico_file = path + ".ico"
+        assert os.path.exists(ico_file), f"ico counterpart of {base_path} should exist."
+        return ico_file
+    else:
+        return base_path
+
+
 exes = [
     cx_Freeze.Executable(
         script=f'{c.script_name}.py',
         target_name=c.frozen_name + (".exe" if is_windows else ""),
-        icon=icon_paths[c.icon],
+        icon=resolve_icon(c.icon),
         base="Win32GUI" if is_windows and not c.cli else None
     ) for c in components if c.script_name and c.frozen_name
 ]

worlds/LauncherComponents.py

@@ -101,7 +101,7 @@ components: List[Component] = [
 
 
 icon_paths = {
-    'icon': local_path('data', 'icon.ico' if is_windows else 'icon.png'),
+    'icon': local_path('data', 'icon.png'),
-    'mcicon': local_path('data', 'mcicon.ico'),
+    'mcicon': local_path('data', 'mcicon.png'),
     'discord': local_path('data', 'discord-mark-blue.png'),
 }