Page History

...

"horizontalAlignment": {
    "type": "int",
    "tags": { "scope": "design" },
    "values": [
        { "LEFT": 2 },
        { "CENTER": 0 },
        { "RIGHT": 4 }
    ],
    "default": -1
},
"mychoice": {
	"type": "string",
	"values": ["yes","no"]
}

But for a button or label in which you initially want some text, but reverting should really clear the text, the default value is not really usable (the label text should be able to be nothing, in case only an image is meant to be shown in that label). For this we have the attribute "initialValue":

...