Rey theme has a single preloader animation built-in, and this module extends with new preloader animations.
To configure and select a different preloader animation, access Customizer > General options > Site preloader, and if you enable the Site preloader option, you should see a list with the new preloaders with extra customization options, such as color, text or image.
Screenshots coming soon!
To install this plugin, access Themes > Install Plugins, and you should see it in this list. Make sure you have Rey Theme registered with your purchase code.
Make sure you update Rey theme to 1.0.3 and Rey Core plugin to 1.0.5 because they contain compatibility improvements.