diff --git a/piet-wgsl/shader/fine.wgsl b/piet-wgsl/shader/fine.wgsl
index 4431848..ad3772c 100644
--- a/piet-wgsl/shader/fine.wgsl
+++ b/piet-wgsl/shader/fine.wgsl
@@ -142,7 +142,7 @@ fn main(
             // CMD_COLOR
             case 5u: {
                 let color = read_color(cmd_ix);
-                let fg = unpack4x8unorm(color.rgba_color);
+                let fg = unpack4x8unorm(color.rgba_color).wzyx;
                 for (var i = 0u; i < PIXELS_PER_THREAD; i += 1u) {
                     let fg_i = fg * area[i];
                     rgba[i] = rgba[i] * (1.0 - fg_i.a) + fg_i;
@@ -158,7 +158,10 @@ fn main(
     }
     let out_ix = global_id.y * (config.width_in_tiles * TILE_WIDTH) + global_id.x * PIXELS_PER_THREAD;
     for (var i = 0u; i < PIXELS_PER_THREAD; i += 1u) {
-        let bytes = pack4x8unorm(rgba[i]);
+        let fg = rgba[i];
+        let a_inv = 1.0 / (fg.a + 1e-6);
+        let rgba_sep = vec4<f32>(fg.r * a_inv, fg.g * a_inv, fg.b * a_inv, fg.a);
+        let bytes = pack4x8unorm(rgba_sep);
         output[out_ix + i] = bytes;
     }
 #else
diff --git a/piet-wgsl/src/test_scene.rs b/piet-wgsl/src/test_scene.rs
index 1029c59..c0c9390 100644
--- a/piet-wgsl/src/test_scene.rs
+++ b/piet-wgsl/src/test_scene.rs
@@ -27,19 +27,10 @@ pub fn gen_test_scene() -> Scene {
         PathElement::LineTo(Point::new(150.0, 210.0)),
         PathElement::Close,
     ];
-    let brush = Brush::Solid(Color::rgb8(0x80, 0x80, 0x80));
+    let brush = Brush::Solid(Color::rgb8(0x40, 0x40, 0xff));
     builder.fill(Fill::NonZero, Affine::IDENTITY, &brush, None, &path);
-    let transform = Affine::translate(10.0, 200.0);
-    /*
-    let path = [
-        PathElement::MoveTo(Point::new(100.0, 300.0)),
-        PathElement::LineTo(Point::new(500.0, 320.0)),
-        PathElement::LineTo(Point::new(300.0, 350.0)),
-        PathElement::LineTo(Point::new(200.0, 460.0)),
-        PathElement::LineTo(Point::new(150.0, 410.0)),
-        PathElement::Close,
-    ];
-    */
+    let transform = Affine::translate(50.0, 50.0);
+    let brush = Brush::Solid(Color::rgba8(0xff, 0xff, 0x00, 0x80));
     builder.fill(Fill::NonZero, transform, &brush, None, &path);
     scene
 }