Plex Ambilight
Adds a dynamic, blurred ambient light effect around the video player on app.plex.tv
. This helps reduce the risk of OLED burn-in on letterboxed content (the black bars) and creates a more beautiful, immersive viewing experience.
The logic is inspired by the popular YouTube Ambilight extension.
Features
- Adds a real-time ambient light effect to the Plex web player.
- Creates a more immersive viewing experience.
- Helps mitigate OLED burn-in by lighting up the black bars.
- Lightweight and efficient, only processing when video is playing.
- Easily customizable settings directly in the script.
Demo

How to Customize
You can easily change the blur, size, and opacity of the effect by editing the script in Tampermonkey. Just look for the settings
section at the top of the file.
// --- You can adjust these settings ---
const settings = {
blur: 50, // How blurry the background is. Higher value = more blur.
scale: 1.1, // How much the blurred background extends beyond the video. 1.1 = 10% larger.
opacity: 0.7, // The visibility of the ambient light. 0.7 = 70% opaque.
};
- blur: Controls the blurriness of the glow.
50
is a good starting point. - scale: Controls how far the glow extends.
1.1
means it's 10% larger than the video player. - opacity: Controls the brightness/visibility of the effect.
0.7
is 70% visible.
Notes
This script relies on the specific HTML class names used by the Plex web player. If Plex updates its website in the future, this script may need to be updated to continue functioning.
Support My Work
This script is free to use, but if you find it useful and want to show your appreciation, you can support me here. Thank you!