Examine source code of tea.dot

{
  "theme": {
    "images": {
      "theme_frame": "teapot.jpg"
    },
    "colors": {
      "frame": "#fad0cb",
      "tab_background_text": "#fad0cb"
    }
  },
  "version": "2.0",
  "name": "tea.dot",
  "manifest_version": 2
}