Youtube WideScreen (New Design Polymer)

For a Wide Screen and the YouTube new Design:

Player stay fixed at the LEFT side.
- Videos related and in queue on the RIGHT side
- Infos, Comment on the RIGHT side ( visible on hover their tabs)
- Progress Bar is always visible
So, you can watch the video AND read infos / Comments (by hovering their tabs) without problem.

Userscripts support for:
- Video Speed Buttons
- Youtube UI Fix
Youtube Play Next Queue:
To make it working with Chrome and Tampermonkey, you need add:
// @include https://www.youtube.com/*
Read:
PB with Chrome and Tampermonkey, which need add @include
- Youtube - Search While Watching Video
- Youtube - dismiss sign-in
- YouTube Progressbar Updater

Note:
After some problem with the use of an agent switcher, which broke this userstyle.
For use with Waterfox Classic and User-Agent Switcher by Alexander Schlarb, chose as settings:
- Force for the domain (the first one)
- Robot: Google Bot

Change in v.5:
- Support for more YouTube pages (Channels, Playlist, etc... )
- Video Title on top.
- Solve a problem around some related video thumbnail not loading.
- Add counter for comments really loaded (we should wait their loading before seeing the comments tab too)
- Some corrections around player and supported userscripts...
- Correction video player: center movie.
By example for horizontal center:
https://www.youtube.com/watch?v=_DsyLuxfu64
and vertical center:
https://www.youtube.com/watch?v=yUif6C_uJgk
- Support for no Dark mode.
It's a quick support , need more fine tuning, but i use always the Dark mode...

Gif Screenshot:

https://i.imgur.com/OiHhCS9.gif

Infos, Comments Tabs

https://i.imgur.com/a3ew4WP.gif

It's Userstyle version, here:
Youtube WideScreen (New Design Polymer)