Adding Custom SVG Animation to Preloader

I have found the WP Smart Preloader Plugin allows custom animation code fields. I have an SVG animation I built in SVGator, and I want to use it as a preloader animation for the homepage. I have two options to export out of SVGator: 1. generate wordpress-ready CSS code for my SVG animation or 2. export an animated SVG file and upload it to the wordpress media library. I have tried working with both in either the custom HTML5 or the custom CSS fields. Neither work. I’ve tried things like inserting <img> and <object> tags in the HTML field along with a link to where the file lives in the media library and inserting the custom code I have. These have all been hail mary passes with me hoping but realizing it is unlikely any of these would work. I wanted to reach out here and ask if there is a good way to convert or insert a SVG animation coded with CSS and prepped for WordPress into the WP Smart Prelaoder plugin custom code fields? If not, do you know of another preloader plugin option that allows custom code fields that support the types of SVG animation I’ve built in SVGator?