[josh-wrale]

Thanks for the link @wmf.

I took a look at the front page of iconfactory.com which is the site where the book author posted this:

http://blog.iconfactory.com/2016/12/making-sense-of-color-ma...

It looks like they aren't demonstrating a least common denominator fix there. This is understandable, as least common denominator probably doesn't look great for most modern icons.

Took this screenshot:

http://imgur.com/a/mNxJo

Might still buy the book. Just did the screenshot as a quick study.