Rough Images in Ch.s 3, and 8

[chrisroederucdenver]

Ch.8 and the ML chapter have some images that are pretty challenging to read.

Specific images in other chapters should be looked at as well: 3.6, 3.8

Someone else might apply a more strict standard and ask for more images to be created in a more clear form. It's clear that some are meant to show the layout, not read.

(edited to remove 10.2 and 9.2 since you can click on them and get a readable image)
(edited to remove ML after creating a separate ticket for it)