PluginsPoint

This plugin was developed with CSS and JS with no images or icons. It is pure CSS and the icons can be easily customized by its shape, size and color.
Live Preview: http://kentothemes.com/plugin_demo/
Plugin Features
Change Shape of the icon
Change the color of the shape
Change the size of the shape
Modify the duration of the loader

Kento Lazy Page Loader

Use Kento Lazy Page Loader and beatify your loading icon while your viewer waits for your website to load.

kodeo

Kodeo Admin UI turns your WordPress backend into a clean and modern user interface. 
All elements are well designed and arranged for the best user experience.
If you want to report a problem or maybe you have a feature request, please send an email to support@kodeo.de
If you like Kodeo Admin UI, please leave a review here on WordPress. Thank you!
<h4>Features</h4>
<ul>
<li>Elegante and stylish admin theme</li>
<li>Super clean user interface</li>
<li>Fully compatible with all WordPress versions since 4.0</li>
<li>Works well with most 3rd party plugins (no layout conflicts)</li>
<li>Tested with all popular Browsers</li>
<li>Lightweight code</li>
<li>Lots of theme options</li>
<li>Customization</li>
</ul>

Kodeo Admin UI

Kodeo Admin UI turns your WordPress backend into a clean and modern user interface

Kento Lazy Page Loader vs Kodeo Admin UI