RichText

{
    "fields": [{
        "group": "Default",
        "name": "RichText",
        "handle": "richtext", // This line is optional
        "instructions": "This is not a required field.",
        "type": "RichText",
        // typesettings & everything inside is optional
        "typesettings": {
            "configFile": "Standard.json", // Can be blank or the file name of the redactor config you want to use
            "cleanupHtml": true,
            "purifyHtml": false,
            "columnType": "text" // or "mediumtext"
        }
    }]
}