Lights off.
Class stays on.

A hand-tuned dark theme for Google Classroom, for students reading at midnight and teachers marking work after dinner. It's on the moment you install.

Add to Chrome, it's free

No account. No tracking. Works in English, Português and Español.

illustration, your own classes look like this

Every page, not only the home screen.

Stream, Classwork, assignments, the Calendar, pending work, dialogs and comment threads. Each one was tuned by hand, so nothing is a blunt color inversion.

illustrations of Classroom with the extension on

One switch.

Turn it off and on from the toolbar. The page changes instantly, without reloading, and your choice follows you to every Chrome where you're signed in.

Three markers.

Pick a green, blue or orange accent for highlights and buttons. Try them on the projector above.

Nothing leaves your browser.

The extension stores two things, your on/off switch and your accent color, in Chrome's own storage. It makes no network requests, has no analytics and needs no account. It only runs on classroom.google.com.

Read the privacy policy

Give your eyes the evening off.

Add to Chrome, it's free

Already using it? A five-star review helps other students and teachers find it.