How to disable new contrast switching tab close button ? Rated 4 out of 5 stars

Captain, the latest update is creating issues. I see 4 close buttons now in different colors. Please give us a way to disable the new contrast switching tab close button.

This review is for a previous version of the add-on (1.4.5.1-signed.1-signed).  This user has a previous review of this add-on.