Wilcity is using Icon Image of Listing Category as Listing Icon on Map
EG: If you are Listing A and Restaurant Category. If the Listing A belongs to Restaurant, the Restaurant Icon Image is using on Map to represent to Listing A.
So, how can You upload Listing Category Icon?
Step 1: Click on Listings -> Listing Categories
Step 2: Hover on Category that you want to upload icon
Step 3: Click Edit
Step 4: You will see Icon Image there -> Upload an icon for it. We highly recommend using an icon of 150 x 150 px
But if you want to setup a Default Icon to all listings:
Step 1: Click on Appearance -> Theme Options
Step 2: Click on Customize Taxonomies
Step 3: Upload an icon for it there.
If a category has a specified icon, this icon will be used. Otherwise, the Default Icon will be used