Examine source code of Text Snacker

{
  "manifest_version": 2,
  "name": "Text Snacker",
  "version": "1.1",
  "description": "AI highlight and summarize text on webpages.",
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": "icons/black-icon.png",
    "theme_icons": [
      {
        "size": 16,
        "dark": "icons/black-icon.png",
        "light": "icons/white-icon.png"
      },
      {
        "size": 32,
        "dark": "icons/black-icon.png",
        "light": "icons/white-icon.png"
      }
    ],
    "default_title": "Text Snacker",
    "default_popup": "popup/popup.html"
  },
  "sidebar_action": {
    "default_title": "Text Snacker",
    "default_panel": "popup/popup.html",
    "open_at_install": false,
    "default_icon": "icons/gray-icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "lib/marked.min.js"
  ],
  "icons": {
    "512": "icons/black-icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "textsnacker@gmail.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}