Add icon next to username using fa-icon, example: fa-badge-check, fad fa-badge-check, leave blank to diable. And you can customize the icon color using XF's available color code.
Icon is selected according to Display styling priority value. If you change the User groups: Display styling priority setting, you need to click Save again to update the priority order.
Configure at: XenVn Setting -> Icons -> User Group Icon
(Will be available from XenVn version 2.2.2)
