Add a camera, render a rect, and set the clear colour

src/main.rs

@@ -1,15 +1,36 @@
 use bevy::{prelude::*, window::PresentMode};
 
 fn main() {
-    App::new()
-        .add_plugins(DefaultPlugins.set(WindowPlugin {
+    let window_plugin = WindowPlugin {
         primary_window: Some(Window {
             title: "Harenae".into(),
-                resolution: (1280.0, 720.0).into(),
+            resolution: (1280., 720.).into(),
             present_mode: PresentMode::AutoVsync,
             ..default()
         }),
         ..default()
-        }))
+    };
+
+    App::new()
+        .add_plugins(
+            DefaultPlugins
+                .set(window_plugin)
+                .set(ImagePlugin::default_nearest()),
+        )
+        .add_systems(Startup, setup)
+        .insert_resource(ClearColor(Color::rgb_u8(45, 42, 46)))
         .run();
 }
+
+fn setup(mut commands: Commands) {
+    commands.spawn(Camera2dBundle::default());
+    commands.spawn(SpriteBundle {
+        sprite: Sprite {
+            color: Color::rgb(0.25, 0.25, 0.75),
+            custom_size: Some(Vec2::new(50.0, 100.0)),
+            ..default()
+        },
+        transform: Transform::from_translation(Vec3::new(-50., 0., 0.)),
+        ..default()
+    });
+}