Examine source code of News Filter

{
  "manifest_version": 3,
  "name": "News Filter",
  "version": "1.2.0",
  "description": "Hides elements on specified sites based on keywords and CSS selectors.",
  "permissions": [
    "storage",
    "contextMenus",
    "scripting",
    "activeTab",
    "tabs",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "js/default_settings.js",
      "js/normalize.js",
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/normalize.js",
        "js/aho_corasick.js",
        "js/content.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "19": "icons/icon-19.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    },
    "default_title": "News Filter"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4981d9c7-951d-4463-8bda-d369a7de18da}",
      "strict_min_version": "109.0"
    }
  },
  "options_page": "popup.html"
}