Varn supports Font-Awesome, boxicons, and some flaticons.
Here are the lists of flaticons:
flaticon-research
flaticon-analytics
flaticon-mail
flaticon-digital-marketing
flaticon-analysis
flaticon-seo
flaticon-right-arrow
flaticon-tick
flaticon-achievement
flaticon-architecture
flaticon-data
flaticon-play-button
flaticon-copyright
flaticon-phone-call
flaticon-email
flaticon-social-media
flaticon-close
flaticon-marker
flaticon-shopping-cart
flaticon-search
flaticon-left-chevron
flaticon-right-chevron