diff --git a/_assets/teaching-resources/open-teaching-graphics/correspondenceProblem.png b/_assets/teaching-resources/open-teaching-graphics/correspondenceProblem.png index dce5a974..e4cef7de 100644 Binary files a/_assets/teaching-resources/open-teaching-graphics/correspondenceProblem.png and b/_assets/teaching-resources/open-teaching-graphics/correspondenceProblem.png differ