//! Shows how to display a window in transparent mode. //! //! This feature works as expected depending on the platform. Please check the //! [documentation](https://docs.rs/bevy/latest/bevy/prelude/struct.Window.html#structfield.transparent) //! for more details. use bevy::prelude::*; #[cfg(any(target_os = "macos", target_os = "linux"))] use bevy::window::CompositeAlphaMode; fn main() { App::new() .add_plugins(DefaultPlugins.set(WindowPlugin { primary_window: Some(Window { // Setting `transparent` allows the `ClearColor`'s alpha value to take effect transparent: true, // Disabling window decorations to make it feel more like a widget than a window decorations: false, #[cfg(target_os = "macos")] composite_alpha_mode: CompositeAlphaMode::PostMultiplied, #[cfg(target_os = "linux")] composite_alpha_mode: CompositeAlphaMode::PreMultiplied, ..default() }), ..default() })) // ClearColor must have 0 alpha, otherwise some color will bleed through .insert_resource(ClearColor(Color::NONE)) .add_systems(Startup, setup) .run(); } fn setup(mut commands: Commands, asset_server: Res<AssetServer>) { commands.spawn(Camera2d); commands.spawn(Sprite::from_image(asset_server.load("branding/icon.png"))); }