Since the official Dark Theme of YouTube has been made public, DeskApp for YouTube has dropped it's own dark theme.

You can enable/disable Dark Theme, the same way you do it in a browser:
- If you're logged out: click Settings (the 3 dotts before "Sign In") at the top right.
- If you are logged in: click on your profile picture at the top right corner
- Click Dark Theme and then toggle the Activate slider.

In case if you don't see the above mentioned menu, it means you are still seeing an older version of YouTube in our app. To fix that you need to click DeskApp for YouTube menu / Clear Cache and Cookies and then View / Reload Page