Use one standard Iris resource bundle

tests/color_space.rs

@@ -1,6 +1,9 @@
 #![recursion_limit = "256"]
 
-use iris::{harness::Harness, prelude::*};
+use iris::{
+    harness::{Harness, HarnessState},
+    prelude::*,
+};
 use pollster::FutureExt;
 use std::sync::OnceLock;
 use wgpu::TextureFormat;
@@ -25,7 +28,7 @@ fn solid_paints_and_images_round_trip_through_an_srgb_target() {
         1,
         image::Rgba([IMAGE.r, IMAGE.g, IMAGE.b, IMAGE.a]),
     ));
-    let bitmap = image::<iris::harness::HarnessRsc>(bitmap)(&mut harness.rsc);
+    let bitmap = image::<StdRsc<HarnessState>>(bitmap)(&mut harness.rsc);
     let root = (rect(solid.clone()).sized((1, 1)), bitmap)
         .span(Dir::RIGHT)
         .add_strong(&mut harness.rsc)