Examine source code of Wood puzzle surface

{
  "name": "Wood puzzle surface",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#faefdc",
      "tab_background_text": "rgba(51, 22, 2, 1)",
      "toolbar": "rgba(250, 249, 240, 0.42)",
      "bookmark_text": "rgba(51, 22, 2, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cdd7b3c3-d773-43d2-99c7-657c309114fb}"
    }
  }
}