Help with letterbox colour

[xn1ckyx]

Hi everyone 

Can or does anyone know how to make the letterbox black when on full screen (inter screen) in youtube.

See pic it not black just faded colour from video

I just want the black pls 

[Windroid]

What is letterbox? Also, please, if you post an image to illustrate something, make sure it is relevant 😉 🙏

[xn1ckyx]

The border around the video. I want it black not faded colours from video

[Windroid]

if it is a YouTube video, I assume, you can disable it from YouTube video settings.

Click on the sprocket ⚙️ that appears at the bottom of the video player, then deactivate the option "Ambient mode" 

ps. it is called "video background" or "surrounding black space" or "video black edge". it is NEVER called letterbox! 🤣

[xn1ckyx]

Doesn't work