Rename Box primitive to Quad

wgpu/src/primitive.rs

@@ -11,7 +11,7 @@ pub enum Primitive {
         bounds: Rectangle,
         size: f32,
     },
-    Box {
+    Quad {
         bounds: Rectangle,
         background: Background,
     },

wgpu/src/renderer.rs

@@ -144,8 +144,8 @@ impl Renderer {
                 scale: wgpu_glyph::Scale { x: *size, y: *size },
                 ..Default::default()
             }),
-            Primitive::Box { bounds, background } => {
-                // TODO: Batch boxes and draw them all at once
+            Primitive::Quad { bounds, background } => {
+                // TODO: Batch quads and draw them all at once
             }
         }
     }

wgpu/src/renderer/button.rs

@@ -20,7 +20,7 @@ impl button::Renderer for Renderer {
     ) -> Self::Primitive {
         Primitive::Group {
             primitives: vec![
-                Primitive::Box {
+                Primitive::Quad {
                     bounds: layout.bounds(),
                     background: Background::Color(Color {
                         r: 0.0,