fix to: Random Colored Artifacts Showing Up (#16)

* add multiple favicon options for book

* reveal templates include favicon

* Rectangle_fix

potential fix to the rectangles appearing in 4.2

* rm commented code, as it's noise with this solution

* pass ci-checks

deleted images to pass the ci-checks

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Co-authored-by: Dan Shields <[email protected]>

Author: Asamartino