Developer - Add loading animation

If you would like to add a loading animation, all you need to do is to drop an image here (this won't be the animation, it's only for the backend as a mark, so it can be anything):
Joomla libraries/nextend2/smartslider/media/spinner/example.png
WordPress wp-content/plugins/nextend-smart-slider3-pro/library/media/spinner/example.png
Magento media/spinner/example.png

Then open up this file:
Joomla libraries/nextend2/smartslider/smartslider/libraries/slider/features/spinner.php
WordPress wp-content/plugins/nextend-smart-slider3-pro/library/smartslider/libraries/slider/features/spinner.php
Magento app/code/community/Nextend2/SmartSlider3/library/smartslider/libraries/slider/features/spinner.php

and all you need to do is to give your html and css code to the end of the $spinners array, where the key should be the filename of your image, and the value is the html and css code:

'example'=>'<div class="example_loading">Loading...</div>
<style>.example_loading {
        font-size: 30px;
        line-height: 30px;
        position: absolute;
        left: 0;
        right: 0;
        top: 50%;
        margin-top: -15px;
        text-align: center;
}</style>'

It should look like something like this: