Hi there,
You can use custom link and HTML img tag to insert image as menu items.
However, I’m not sure if it will look good as it’s not meant for it.
I’m not sure if there is a way to add that menu arrow using CSS. It’s also a bit out of the scope of this support forum.
Like I’ve mentioned in another post, our mega menu is meant to be simple without these fancy add-ons.
I would recommend going with a plugin solution if you want more control over it – there is definitely one out there that handles pictures better and might have the arrow as well.
Hope this helps!