Hey there ksdenis,
We’ve unfortunately not created a way to load unminified CSS — it’s on our backlog but is a very small issue with an easy workaround.
Two recommendations:
1) DO NOT EVER DIRECTLY EDIT THE CSS OF A PLUGIN (or any files for that matter)! Once you run an update all your customizations will be deleted and replaced by the updated CSS file of the plugin. If you want to make customizations to the CSS, *override* the default CSS with more specific CSS and add that CSS via a theme, child theme, or a plugin like https://wordpress.org/plugins/simple-custom-css/
2) If you want to load the unminified CSS simply copy the contents of the minified CSS to the minified version. This is a few steps but it will get your unminified CSS to load without having to do anything fancy. Be warned though, this change will be undone by a plugin update as per #1.
Hope that helps,
Thank you! It’s very helped me!