Based on the DF Tube (Distraction Free for YouTube™) addon.
You can only change the options in the code, because I removed all the checkboxes to change them dynamically.
Change them to your liking (df_youtube.js >>> get_default_options()).
This is not an official chrome extension.
If you want to use it, you have to add it to chrome via developer mode.
I do not own any of the images or code.
The chrome extension, which this code is based on, is not being maintained anymore.