Reply To: Strange Highlights over text

1. Your styles are marked with a pink background. Almost everything is in the same style.
2. Your paragraphs all have overrides, hence the red line in the margins.
3. All of your text has overrides, hence the red line through the text.

You must have downloaded and used Marc Autret’s StyLighter: https://creativepro.com/style-highlighting.php

Run it again and uncheck the options to get rid of it. (Unrelated but: that’s a LOT of local overrides. You may want to look in to using styles properly…)