I'm trying to create a new Freemarker based component on TeamSite 16. Considering that I need a Freemarker template file (.ftl) and a Java class to transform the data, what information do I enter on Appearance, Appearance XML and Content XML? How do i specify the Freemarker template and the Java class? Is there any example component I can check?
I followed the Site Developer Guide and not much information can be found regarding the Freemarker components. The documentation mentions that a new skin needs to be created. The one I created is below, however I cannot specify my freemarker template:

Thank you.