Umbra

¿Qué es Umbra?

Umbra brings a designer-quality dark mode to every website. Instead of harsh color inversion, it uses carefully balanced colors that are easier on the eyes. It automatically skips sites with native dark themes, reduces white flashes while pages load, and lets you customize brightness, contrast, and grayscale globally or per site. Everything runs locally—no login, no tracking, and no personal data collection.