Michael Uno

miunosoft

Say your client wants to add a custom upload button somewhere in the admin page but it is not possible with WordPress built-in hooks.
In that case, use this plugin to embed an uploader link. Example rules will be created when you first activate the plugin and you can modify those to suite your needs.
<h4>Options</h4>
<ul>
<li>decide whether a button should be replaced with an existing element or inserted.</li>
<li>redirect the page after the user upload a file.</li>
<li>disable the <code>Library</code> tab in the uploader window.</li>
<li>restrict file types to be uploaded.</li>
</ul>

Uploader Anywhere

Inserts uploader modal window links anywhere in the admin area.

ryansommers

Slate provides a clean, simplified design for your WordPress Admin area.
Our goal was to simplify the visual design with a primary focus on the content writing experience.
If you like Slate, please consider leaving a review here on WordPress. Thank you!

Slate Admin Theme

This admin theme is particularly well thought for High resolution screens so it’s better than default theme.

Good

A clean, simplified WordPress Admin theme.

Uploader Anywhere vs Slate Admin Theme