diff --git a/crates/egui_demo_lib/src/rendering_test.rs b/crates/egui_demo_lib/src/rendering_test.rs
index f9ead5c584c..df3add3776e 100644
--- a/crates/egui_demo_lib/src/rendering_test.rs
+++ b/crates/egui_demo_lib/src/rendering_test.rs
@@ -681,7 +681,7 @@ fn mul_color_gamma(left: Color32, right: Color32) -> Color32 {
 #[cfg(test)]
 mod tests {
     use crate::ColorTest;
-    use egui::vec2;
+    use egui_kittest::kittest::Queryable as _;
 
     #[test]
     pub fn rendering_test() {
@@ -689,13 +689,16 @@ mod tests {
         for dpi in [1.0, 1.25, 1.5, 1.75, 1.6666667, 2.0] {
             let mut color_test = ColorTest::default();
             let mut harness = egui_kittest::Harness::builder()
-                .with_size(vec2(2000.0, 2000.0))
                 .with_pixels_per_point(dpi)
                 .build_ui(|ui| {
                     color_test.ui(ui);
                 });
 
-            //harness.set_size(harness.ctx.used_size());
+            {
+                // Expand color-test collapsing header
+                harness.get_by_label("Color test").click();
+                harness.run();
+            }
 
             harness.fit_contents();
 
diff --git a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.00.png b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.00.png
index 07f0368038a..b4c96d8397d 100644
--- a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.00.png
+++ b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.00.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:15c277b6fe21197fbf4ab508416bd7b979f9dc2f64e454c5e85cac015de698f7
-size 278954
+oid sha256:dc83a67ac7ff574f981dae02c05ecfba934df4fb181bba12fd7607ef9cba5aa6
+size 523650
diff --git a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.25.png b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.25.png
index 92f214089ca..82426652255 100644
--- a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.25.png
+++ b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.25.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:df550aecfb69b8c5788bd88e5e3be2fa2adfe8bda6ada95bf76a81733a7bee69
-size 378566
+oid sha256:a0fe7626d08a4d28a66d39824cdcd8fef140c7c818e5fc07a7e86756c249875d
+size 737802
diff --git a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.50.png b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.50.png
index 52e5c0ca4f6..29514c4e7ff 100644
--- a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.50.png
+++ b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.50.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:be3a87f32e971207923d32df59a02b7a64faebd58cafdd73c8259df0846ec90a
-size 464502
+oid sha256:477437c5c8766beac88a96f531d8dfe5fac1fe2cdd4bad02fbc53610eb8925fb
+size 887154
diff --git a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.67.png b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.67.png
index 4b4a1effd1b..3d412b56667 100644
--- a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.67.png
+++ b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.67.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0eddb5c9d0355170f0ddc627f87927f9c83064949baa0d43ebc569b88393b69d
-size 540070
+oid sha256:8aa0503d6e5dc82953000c7e68be826b0bf4f288aef82c2d5d832189538eb3b2
+size 1002104
diff --git a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.75.png b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.75.png
index 79d240c1011..f10d189a56e 100644
--- a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.75.png
+++ b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_1.75.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:89f0524a19fbb656807424c366d894a6b9f4f7ceecc4b3635aaa849609fa12a5
-size 569752
+oid sha256:bef9f6dde686733e04a447be280fd50704db163d330fd8c663357b057cd50e27
+size 1080661
diff --git a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_2.00.png b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_2.00.png
index 3dec93ddf4d..6890b9d4611 100644
--- a/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_2.00.png
+++ b/crates/egui_demo_lib/tests/snapshots/rendering_test/dpi_2.00.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b5c7c9dc29a4947b42dc72a112d5d0cafaa50e805718c2731ddbff5e8e9cda74
-size 665559
+oid sha256:136c60283286df17e6751220e0c849028bc1379910995cf9e4930c5d63d0a90f
+size 1235057