diff --git a/tests/Tests.cpp b/tests/Tests.cpp
index f05475c..a21a4af 100644
--- a/tests/Tests.cpp
+++ b/tests/Tests.cpp
@@ -8,9 +8,21 @@
 #include "ProgressBarCounterTest.h"
 #include "ProgressBarInfiniteTest.h"
 
+namespace
+{
+void setLightPalette()
+{
+    QPalette palette;
+    palette.setColor(QPalette::Window, QColor(240, 240, 240));
+    QApplication::setPalette(palette);
+}
+}  // namespace
+
 int main(int argc, char* argv[])
 {
-    const QApplication a(argc, argv);
+    QApplication a(argc, argv);
+
+    setLightPalette();
 
     DoubleSliderTest doubleSliderTest;
     QTest::qExec(&doubleSliderTest);
diff --git a/tests/res/counterFinished.png b/tests/res/counterFinished.png
index 25881c7..ba8f76a 100644
Binary files a/tests/res/counterFinished.png and b/tests/res/counterFinished.png differ
diff --git a/tests/res/counterInitial.png b/tests/res/counterInitial.png
index b3ed588..2ece4bf 100644
Binary files a/tests/res/counterInitial.png and b/tests/res/counterInitial.png differ
diff --git a/tests/res/counterUpdated.png b/tests/res/counterUpdated.png
index 84409c5..6f0fadf 100644
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diff --git a/tests/res/infinityInitial.png b/tests/res/infinityInitial.png
index 3226b88..7d712cb 100644
Binary files a/tests/res/infinityInitial.png and b/tests/res/infinityInitial.png differ
diff --git a/tests/res/infinityUpdated.png b/tests/res/infinityUpdated.png
index cfa955c..b115f86 100644
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