Rated 5 out of 5 stars

per Firefox user 9719e5 el jun. 12, 2022 ·

Since my first review, the creator gave me a helping hand and now it works
You have to go into:
Preferences - General - Language&Appearance - Colors
and set the override to 'never' in the drop down menu "Override the colours....."

This review is for a previous version of the add-on (6.1.0).  Aquest usuari ha fet un comentari abans a aquest complement.