sprite picking not work with fullscreen ui node

[foxzool]

Bevy version

The release number or commit hash of the version you're using.

0.15.0-rc.3 and lastest #e155fe1d

[Optional] Relevant system information

SystemInfo { os: "Linux rolling Arch Linux", kernel: "6.11.6-arch1-1", cpu: "AMD Ryzen 7 5800X 8-Core Processor", core_count: "8", memory: "31.3 GiB" }
AdapterInfo { name: "NVIDIA GeForce GTX 1060 3GB", vendor: 4318, device: 7044, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "565.57.01", backend: Vulkan }

What you did

bevy 2d add a sprite and observe click event and add a fullscreen ui above it .

[dependencies]
# bevy = { git = "https://github.com/bevyengine/bevy", features = ["bevy_sprite_picking_backend"]}
bevy = { version = "0.15.0-rc.3", features = ["bevy_sprite_picking_backend"] }

use bevy::prelude::*;

fn main() {
    App::new().add_plugins(DefaultPlugins)
    .add_systems(Startup, setup)
    .run();
}

fn setup(mut commands: Commands) {
    commands.spawn(Camera2d::default());

    commands
    .spawn(Node {
        width: Val::Percent(100.),
        height: Val::Percent(100.),
        justify_content: JustifyContent::SpaceBetween,
        ..default()
    });

    commands.spawn(Sprite::from_color(Color::WHITE, Vec2::new(100.0, 100.0))).observe(on_click);
}

fn on_click(trigger: Trigger<Pointer<Click>>,) {
    println!("Clicked! {:?}", trigger);
}

What went wrong

click sprite should trigger event

Additional information

[foxzool]

If add PickingBehavior::IGNORE to Node , the trigger will fire. But it's unsound， default node should not block picking。 Other Type such as Button、 Sprite should default block picking。

[rendaoer]

Makes sense

[BenjaminBrienen]

That might be intentional design. Maybe someone wants to detect clicks on the invisible node. @NthTensor can you weigh in?

[NthTensor]

I don't have options about the default behavior for node. We could add it as a required component, and maybe either ignore or non-blocking make sense.