The preloader image can be changed from the following image tab which is located at the beginning of each page:
<div id="sh__page-loading" class="sh__pageLoading sh__preloaderBreath"> <div class="sh__pageLoading-inner"> <img src="img-assets/logo2.png" alt=""> <!-- Change the preloader image --> </div> </div>
If you want to remove the preloader animation you can simply remove the
sh__preloaderBreath class from the above code.
The preloader style can be found in app/css/scss/_general.scss > page preloader. Also the preloader function is located in app/js/src/script.js > enablePreloader.