This adds an item to the content area context menu that inverts the colors of the element you right-clicked to open the menu. It's a toggle, so you can uninvert the element afterwards. This works by adding an inline style rule, filter: invert(1)
When inverting elements, set hue-rotate in addition to invert. This way, only luminosity will be inverted. I believe Dark Reader uses the same method to preserve color scheme. In version 1.1, if you used this addon to invert a bright pink element, it would turn the element dark green. As of version 1.2, it will instead turn the element dark pink.
