WordPress Monsters

It’s a great admin color theme! If you spend a lot of time with WordPress admin panel, this is the best way to make it beautiful and productive. Do you suffer from sore eyes? Try to use our admin theme! This color scheme has specific design that will help you to concentrate on your work for a long time without any discomfort.
This plugin provides:
<ul>
<li>Beautiful and relaxing color scheme</li>
<li>Customizable admin background</li>
<li>Possibility to add your own logo in admin panel</li>
<li>Easy to use and simple to config</li>
</ul>

Eye-candy theme by WordPress Monsters

Add new admin theme to your website. If default admin themes irritate you and you suffer from sore eyes, this color scheme is the best choice for you!

Cico Zeljko

wpvote

This is a simple plugin that will make your wp admin panel theme much more pleasant for work. Using specific colours you improve your work surrounding and simple and clean design of your wp admin panel.
<ul>
<li>30 color themes.</li>
<li>Tested with other popular plugins.</li>
<li>last update 8/5/2019</li>
</ul>
Video: 
https://www.youtube.com/watch?v=usB0PPeEczw

Colorize Admin

This is a simple plugin that will make your wp admin panel theme much more pleasant for work.

Eye-candy theme by WordPress Monsters vs Colorize Admin