Loader is the animation a user usually sees while waiting for the page loading. In the Data Tables plugin, you have an opportunity to add a beautifully animated preloader to your table without writing any code.
How to enable Table Loader?
In order to enable loader, go to the Options settings and click the Appearance tab. Here scroll down to the Hide Table Loader option and uncheck it.
In order to change the icon, click Choose icon button. In a newly-opened window, select the one you like.
In the color picker, you can set the desired color for the preloader icon.