diff --git a/test/KnowledgePicker.WordCloud.Tests/Assets/example.png b/test/KnowledgePicker.WordCloud.Tests/Assets/example.png
index 556a1d3..daf57d6 100644
Binary files a/test/KnowledgePicker.WordCloud.Tests/Assets/example.png and b/test/KnowledgePicker.WordCloud.Tests/Assets/example.png differ
diff --git a/test/KnowledgePicker.WordCloud.Tests/Assets/random-colorizer.png b/test/KnowledgePicker.WordCloud.Tests/Assets/random-colorizer.png
index 1c5ac49..e87fe04 100644
Binary files a/test/KnowledgePicker.WordCloud.Tests/Assets/random-colorizer.png and b/test/KnowledgePicker.WordCloud.Tests/Assets/random-colorizer.png differ
diff --git a/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-purple-fallback.png b/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-purple-fallback.png
index 5cee1ef..2699ceb 100644
Binary files a/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-purple-fallback.png and b/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-purple-fallback.png differ
diff --git a/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-random-fallback.png b/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-random-fallback.png
index 625e65a..3e95427 100644
Binary files a/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-random-fallback.png and b/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer-random-fallback.png differ
diff --git a/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer.png b/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer.png
index 773da59..6ed98b5 100644
Binary files a/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer.png and b/test/KnowledgePicker.WordCloud.Tests/Assets/specific-colorizer.png differ