Thank you for using our product and pls accept my deep apology for my late reply.
As you request, it is possible to place an image in the tab menu instead of fa-home.
Pls login the backend, go to Menu -> Joomla Mega Menu, navigate to Link Type tab and upload or add image link in Link Image section. You can take a look at the following screenshot as the instruction.
prntscr.com/exp4ow
icon on menu
