{
  "core/heading": {
    "fields": [
      { "name": "content", "label": "Heading Text" }
    ]
  },
  "core/paragraph": {
    "fields": [
      { "name": "content", "label": "Paragraph Text" }
    ]
  },
  "core/button": {
    "fields": [
      { "name": "text", "label": "Button Text" }
    ]
  },
  "core/image": {
  "fields": [
    { "name": "url", "label": "Image URL" }
  ]
}
}