Great functionality and options, must-have for those who like their eyes :)

me gusta que se pueden añadir atajos en caso quiera cambiar manualmente el color de la pagina, lo recomiendo.

Top Add-on !!

I can't live without this :,)

The GOAT. Saved my peepers from the bright white backgrounds before dark mode has became the standard in most sites. Ironically doesn't work add-on page of firefox but I don't believe it's the fault of the add-on.