Examine source code of Fjord theme

{
  "name": "Fjord-theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Fjord-theme.png"
    },
    "colors": {
      "frame": "rgba(24, 38, 71, 1)",
      "tab_background_text": "rgba(20, 112, 145, 1)",
      "toolbar": "rgba(130, 120, 107, 1)",
      "bookmark_text": "rgba(28, 71, 156, 1)",
      "toolbar_field": "rgba(29, 111, 120, 1)",
      "toolbar_field_text": "rgba(186, 157, 145, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{98c0209b-54e5-4044-a866-fe3b4a505b34}"
    }
  }
}