Review for Darko by Dr. Freund
Rated 4 out of 5 stars
Looks good, but one option is missing: configure, if only html-messages, only plain-text-messages or both are displayed in darkmode. In html-messages I usually want to see the original colors, but plain-text-messages should be dark.
This review is for a previous version of the add-on (3.3).To create your own collections, you must have a Mozilla Add-ons account.