Examine source code of STAGIL Atlassian Cloud

{
  "manifest_version": 3,
  "name": "STAGIL Atlassian Cloud Browser Extension",
  "version": "2.7.11",
  "browser_specific_settings": {
    "gecko": {
      "id": "stgl-brws@ext"
    }
  },
  "description": "STAGIL Atlassian Cloud Browser Extension for Mozilla Firefox.",
  "icons": {
    "16": "images/snjc/icon-16.png",
    "32": "images/snjc/icon-32.png",
    "48": "images/snjc/icon-48.png",
    "128": "images/snjc/icon-128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "https://*.atlassian.net/*",
    "file:///html/*",
    "https://apps.stagil.com/*"
  ],
  "action": {
    "default_icon": "images/snjc/icon-48.png",
    "default_title": "STAGIL Atlassian Cloud Browser Extension",
    "default_popup": "html/options.html"
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "https://*.atlassian.net/*",
        "file:///html/*",
        "file://js/*",
        "https://apps.stagil.com/*"
      ],
      "css": [
        "css/skeleton.css",
        "css/scbe.css",
        "css/scbe-firefox-extra.css",
        "css/sncc.css",
        "css/sidebar.css"
      ],
      "js": [
        "js/commonFiles/sockjs.min.js",
        "js/commonFiles/stomp.min.js",
        "js/commonFiles/constants.js",
        "js/commonFiles/utils.js",
        "js/sajc/sajc-loader.js",
        "js/snjc/snjc-loader.js",
        "js/sajc/sajc.js",
        "js/snjc/snjc.js"
      ],
      "all_frames": true
    }
  ]
}