However, we support these for the users that will upload SVG files in their installations in various elements (Icon, Icon Box, Counter). How can you upload a SVG file? All you need is to install and activate a plugin for this (eg https://wordpress.org/plugins/safe-svg/).
In Crocal official demo we use icons (SVG and PNG) from Streamline Icon Library.
Themes must not enable SVG uploads as it raises security concerns due to the possibility of attackers executing malicious code through SVG’s XML. For more information on SVG uploads, refer to SVG uploads in WordPress article.