Is there a way to reveal resources in the built folder structure?

I have a player editable map in which player can select a location on the map, and select an icon to place there. There is a certain list of icons in the resource folder, but I want users to be able to go into the game's folders and replace or add custom icons. The map icons will be a set of small .png images.

Of course, when I build the game, the image resources are not stored in a normal fie structure.

My question is: Is there a way to have the .png images show up in the built file structure of my game so that players can easily go in and edit icons?

If this is not possible, do you have any suggestions as to how to accomplish the same goal another way?