Start out with bevy vello example

.gitignore

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+/target
+.cargo/config.toml

Cargo.toml

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+[package]
+name = "norenorn"
+version = "0.1.0"
+edition = "2024"
+
+# Enable a small amount of optimization in the dev profile.
+[profile.dev]
+opt-level = 1
+
+# Enable a large amount of optimization in the dev profile for dependencies.
+[profile.dev.package."*"]
+opt-level = 3
+
+[dependencies]
+bevy = "0.15.3"
+bevy_vello = "0.7.1"

src/main.rs

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+use bevy::prelude::*;
+use bevy_vello::{VelloPlugin, prelude::*};
+use std::ops::DerefMut;
+
+fn main() {
+    App::new()
+        .add_plugins(DefaultPlugins)
+        .add_plugins(VelloPlugin::default())
+        .add_systems(Startup, setup_vector_graphics)
+        .add_systems(Update, simple_animation)
+        .run();
+}
+
+fn setup_vector_graphics(mut commands: Commands) {
+    commands.spawn((Camera2d, VelloView));
+    commands.spawn(VelloScene::new());
+}
+
+fn simple_animation(mut query_scene: Single<(&mut Transform, &mut VelloScene)>, time: Res<Time>) {
+    let sin_time = time.elapsed_secs().sin().mul_add(0.5, 0.5);
+    let (transform, scene) = query_scene.deref_mut();
+    // Reset scene every frame
+    scene.reset();
+
+    // Animate color green to blue
+    let c = Vec3::lerp(
+        Vec3::new(-1.0, 1.0, -1.0),
+        Vec3::new(-1.0, 1.0, 1.0),
+        sin_time + 0.5,
+    );
+
+    // Animate the corner radius
+    scene.fill(
+        peniko::Fill::NonZero,
+        kurbo::Affine::default(),
+        peniko::Color::new([c.x, c.y, c.z, 1.]),
+        None,
+        &kurbo::RoundedRect::new(-50.0, -50.0, 50.0, 50.0, (sin_time as f64) * 50.0),
+    );
+
+    transform.scale = Vec3::lerp(Vec3::ONE * 0.5, Vec3::ONE * 1.0, sin_time);
+    transform.translation = Vec3::lerp(Vec3::X * -100.0, Vec3::X * 100.0, sin_time);
+    transform.rotation = Quat::from_rotation_z(-std::f32::consts::TAU * sin_time);
+}