This fixes my eye strain, with darker mellow colours

Great! Just what I need

the best of its kind and i've tested many

After a bit of trial and error, I found this easy to use. My eyes are so sensitive to bright screens so this add on really helps!

This program is for the experienced user only. Very complicated and not user friendly.

SUPERB ! Once you find the add-on, and tweak it a little, it works great. My recommendations to the developer: 1) improve key-word search to find it (see "Dark Reader"). 2) adjust default colors - see "material.io": #121212 and #C3C3C3. 3) Consider extending the color with "opaqueness" to a full RGB-A model. Thanks again for this add-on :)

It's more easy/friendly interface and ways more customization compared to DarkReader.