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.

Edward Ruchevits

Adds autocomplete functionality to all taxonomy input fields in admin panel.

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Kento Lazy Page Loader vs Admin Taxonomy Autocomplete