Examine source code of The Pond Tree

{
  "name": "The Pond Tree",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "TreePondHcopy.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(255, 235, 120, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 234, 115, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.11)",
      "toolbar_field_text": "rgba(255, 236, 127, 1)",
      "tab_line": "rgba(255, 236, 127, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f37e34a8-d6a8-4b87-b9f3-11b87c943a4b}"
    }
  }
}