Lumen: Ambient Light & Quality for YouTube

Ambient light around YouTube videos, the video quality you choose, and a cleaner YouTube.

Lumen adds an ambient light around YouTube videos, starts videos in the quality you choose and can hide parts of YouTube you don't need. Ambient Light The page around the player takes on the colors at the edges of the video, similar to a TV with backlighting. The light follows the picture smoothly and changes immediately at scene cuts. • Works in the normal and theater view, with vertical videos and live streams • Dark scenes stay black, which suits OLED screens • The search bar and the playlist beside the video let the light shine through • The page below the video is slightly darker, so comments stay readable • Brightness, color, reach, softness and smoothing can be adjusted • Alt+A turns the light on or off, the shortcut can be changed Video Quality • Choose a resolution from 144p to 4320p, or always the highest available • Prefer 60 fps or limit to 30 fps • Uses the enhanced bitrate of YouTube Premium if your account has it • Can avoid AV1 or VP9 on devices without hardware decoding for them • Can also apply to YouTube videos embedded on other websites Clean-Up • Optionally hide Shorts • Optionally hide end screen cards, the suggestions at the end of a video and info cards Good to Know • Built to stay light: the video player loads first and scrolling stays smooth • The light needs graphics acceleration in Chrome and YouTube's dark theme. The menu shows when something is missing. • Lumen only runs on YouTube and does nothing while no video is open. • If a YouTube update breaks a feature, the menu says so. The other features keep working. Privacy Lumen collects no data and makes no network requests. Settings are stored in Chrome and synced to your other devices if Chrome sync is on. Lumen is an independent project and is not affiliated with YouTube or Google.