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 :)