Examine source code of Harlequin Forest

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#d1c6c6",
      "tab_background_text": "#fcf9f9"
    }
  },
  "version": "2.0",
  "name": "Harlequin Forest",
  "manifest_version": 2,
  "description": "Eerie forest in the nightt"
}