Wednesday is my regular day off from my metabolomics work, and today I am finalizing the layout of my thesis, which I'll defend on April 2. The print version will feature grayscale images with some of them in color too. However, the PDF version that will end up in our university repository should have color prints. So, while halfway creating suitable grayscale versions of the image, I realized I was not doing it properly.
Egon Willighagen (Wed,) studied this question.
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