design_structure.json

{
    "design" {
		"elements": {
			"form" {
				"first_name": {
					"type": "input",
					"placeholder": "First Name",
					"height": 20,
					"width": 100
				},
				"last_name": {
					"type": "input",
					"placeholder": "Last Name",
					"height": 20,
					"width": 100
				}
			},
			"success" {
				"facebook": {
					"title": "foo",
					"message": "bar"
				},
				"twitter": {
					"hashtag": "#foo"
					"message": "bar"
				}
			}
		}
	}	
}