Dropdown

{
    "default" : "option1",
    "options" : {
        "option1": "Option 1 Text",
        "option2": "Option 2 Text"
    }
}

When specifying that an input type should be a dropdown you will need to specify the values of that dropdown. In the JSON above you can specify the default value of the dropdown if it does not have a value. Additionally, in the options object you will specify the value of the option on the left and the text to be displayed on the right.