:Thanks for the explanation Jon. I have 2 problems with the current diagrams: 
 :# The labels are unreadable. On the 1st image I can read 3 of the 15 labels. On the 2nd image I can read zero. On the 3rd image, I can read about half. On the diagram that I substituted, I can read all of the labels at thumbnail resolution. The manual of style suggests that diagrams should be large enough to be readable (which suggests that the labels in these images need to be larger). Some of the labels are even hard to read on the file pages. 
 :# They are redundant. Apart from a small handful of labels, they show the exact same information. Having 3 images showing the same information is unnecessary and wasteful of valuable space (especially on mobile devices). 
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