Examine source code of SIGAA Pro

{
  "manifest_version": 2,
  "name": "SIGAA Pro",
  "version": "1.1.1",
  "description": "Melhora a usabilidade do SIGAA com tradução de horários, agenda semanal e menus aprimorados.",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "*://sigaa.ufcg.edu.br/*"
  ],
  "browser_action": {
    "browser_style": false,
    "default_area": "navbar",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png"
    },
    "default_title": "SIGAA Pro"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://sigaa.ufcg.edu.br/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "schedules.json"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "sigaa-pro@extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}