Examine source code of Knitting Yarn

{
  "name": "Knitting Yarn",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Knitting Yarn.png"
    },
    "colors": {
      "frame": "rgba(109, 191, 203, 1)",
      "tab_background_text": "rgba(243, 219, 255, 1)",
      "toolbar": "rgba(109, 191, 203, 0.5)",
      "bookmark_text": "rgba(243, 219, 255, 1)",
      "toolbar_field": "rgba(47, 122, 135, 0.4)",
      "toolbar_field_text": "rgba(222, 201, 234, 1)",
      "tab_line": "rgba(214, 245, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{13262ef0-6de0-4d38-937a-6641295be0c9}"
    }
  }
}