Examine source code of detektIIIF2

{
  "version": "0.1.8",
  "manifest_version": 2,
  "name": "detektIIIF 2",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "webRequest",
    "tabs",
    "storage",
    "activeTab",
    "<all_urls>"
  ],
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon-34.png"
  },
  "icons": {
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "<all_urls>"
      ],
      "js": [
        "contentScript.bundle.js"
      ],
      "css": [
        "content.styles.css"
      ]
    }
  ],
  "devtools_page": "devtools.html",
  "web_accessible_resources": [
    "content.styles.css",
    "icon-128.png",
    "icon-34.png"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{1e28db1e-b412-42a1-a2eb-0de42f615e9e}"
    }
  }
}