Use Sam's 2d/3d toggle button icons

src/ui.rs

@@ -29,7 +29,6 @@ fn initialize(mut commands: Commands) {
         .spawn((
             NodeBundle {
                 style: Style {
-                    padding: UiRect::all(Val::Px(10.0)),
                     position_type: PositionType::Absolute,
                     right: Val::Px(5.0),
                     bottom: Val::Px(5.0),
@@ -45,7 +44,8 @@ fn initialize(mut commands: Commands) {
             parent.spawn((
                 ButtonBundle {
                     style: Style {
-                        padding: UiRect::all(Val::Px(10.0)),
+                        width: Val::Px(25.0),
+                        height: Val::Px(25.0),
                         ..default()
                     },
                     background_color: Color::WHITE.into(),
@@ -83,8 +83,8 @@ fn sync_display_mode(
 ) {
     query.iter_mut().for_each(|(mut image, mut display_state)| {
         let (texture, target_state) = match state.get() {
-            DisplayState::Display2d => (server.load("images/3d-icon.png"), DisplayState::Display3d),
-            DisplayState::Display3d => (server.load("images/2d-icon.png"), DisplayState::Display2d),
+            DisplayState::Display2d => (server.load("images/3DIcon.png"), DisplayState::Display3d),
+            DisplayState::Display3d => (server.load("images/2DIcon.png"), DisplayState::Display2d),
         };
         *image = UiImage {
             texture,