This filter allows you to modify the HTML that shows the reload and direction icons on the map.
This example will replace the “Reset Map” icon with the old “Reset” button that was included in the 1.x version.
code represents the “Show My Location” icon, and is used to render the icon font from fontello.com
. The code for the “Reset Map” icon is 
This filter is located in /frontend/class-frontend.php.
The code needs to be placed in the functions.php file inside your active theme folder.