Examine source code of Christmas Berries 2

{
  "theme": {
    "images": {
      "theme_frame": "t.jpg"
    },
    "colors": {
      "frame": "#787777",
      "tab_background_text": "#dedbdb"
    }
  },
  "version": "2.0",
  "name": "Christmas Berries 2",
  "manifest_version": 2
}