Editor background colour in full screen

Question

In this Q&A, How do you change the visual editor's background color?, it is shown how to modify WordPress' editor background colour.
My question is how can I modify the editor's background colour, in full screen mode? (also called "distraction free" mode).
The solution in the linked thread does not work for full screen editor mode.

Answer 1

This kind of problems are solved using Chrome Inspector or Firefox Firebug.

Inspecting the element, we get the necessary ID's or Classes to add in the stylesheet.

So, .mceContentBody.wp-fullscreen-editor is the one we need to address in the theme file editor-style.css:

.mceContentBody.wp-editor, .mceContentBody.wp-fullscreen-editor {     
  background-color: #000;
  color: #fff; 
}