How to change Content Manager background?

Any idea? I would like to use my own images.

Section Settings & Content Settings - Content Management System Online Help

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A lookback at 2020 - The challenges and wins

Tried to redesign the Cities: Skylines interface to be more modern, this is my take on it! : r/CitiesSkylines

Where am I? Skinning the SDL Tridion Content Manager Explorer.

How to Add & Change Background Color in HTML

How to Add & Change Background Color in HTML