Set actual window icon on windows

Cargo.toml

@@ -6,5 +6,9 @@ edition = "2024"
 [dependencies]
 bevy = "0.18.1"
 
+[target.'cfg(target_os = "windows")'.dependencies]
+image = "0.25.10"
+winit = "0.30.13"
+
 [target.'cfg(target_os = "windows")'.build-dependencies]
 winresource = "0.1.31"

src/main.rs

@@ -7,6 +7,12 @@ use bevy::{
     },
 };
 
+#[cfg(target_os = "windows")]
+use {
+    bevy::{ecs::system::NonSendMarker, winit::WINIT_WINDOWS},
+    winit::window::Icon,
+};
+
 const GRAVITY: f32 = -1800.0;
 const JUMP_VEL: f32 = 600.0;
 
@@ -17,9 +23,27 @@ struct Player {
     on_ground: bool,
 }
 
+#[cfg(target_os = "windows")]
+fn set_window_icon(_marker: NonSendMarker) {
+    let (icon_rgba, icon_width, icon_height) = {
+        let image = image::open("assets/Icon.png")
+            .expect("Failed to open icon path")
+            .into_rgba8();
+        let (width, height) = image.dimensions();
+        (image.into_raw(), width, height)
+    };
+    let icon = Icon::from_rgba(icon_rgba, icon_width, icon_height).unwrap();
+
+    WINIT_WINDOWS.with_borrow(|winit_windows| {
+        for window in winit_windows.windows.values() {
+            window.set_window_icon(Some(icon.clone()));
+        }
+    });
+}
+
 fn main() {
-    App::new()
+    let mut app = App::new();
-        .add_plugins(
+    app.add_plugins(
         DefaultPlugins
             .set(RenderPlugin {
                 render_creation: RenderCreation::Automatic(WgpuSettings {
@@ -49,8 +73,12 @@ fn main() {
             }),
     )
     .add_systems(Startup, setup)
-        .add_systems(Update, update_position)
+    .add_systems(Update, update_position);
-        .run();
+
+    #[cfg(target_os = "windows")]
+    app.add_systems(Startup, set_window_icon);
+
+    app.run();
 }
 
 fn setup(mut commands: Commands, asset_server: Res<AssetServer>, window: Query<&Window>) {