Textarea

The textarea field can be used when you want to allow user input more than one line of text.

{
    "name": "copyrightNote",
    "label": "Copyright note",
    "group": "Footer",
    "value": "",
    "type": "textarea",
    "rows": 50,
    "cols": 100,
    "disabled": false
}

Above code will generate the field available as @config.custom.copyrightNote under Footer tab in the theme's custom settings. The generated textarea element will have attributes rows and cols set to the provided values.