Examine source code of Page Element Hider

{
  "manifest_version": 3,
  "name": "Page Element Hider",
  "version": "1.0",
  "description": "Hide unwanted elements from webpages for a cleaner browsing experience",
  "homepage_url": "https://github.com/yognevoy/page-element-hider",
  "browser_specific_settings": {
    "gecko": {
      "id": "pageelementhider@gmail.com"
    }
  },
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg"
  },
  "permissions": [
    "contextMenus",
    "activeTab",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    },
    "default_title": "Page Element Hider",
    "default_popup": "popup/popup.html",
    "theme_icons": [
      {
        "light": "icons/icon-light-48.svg",
        "dark": "icons/icon-48.svg",
        "size": 48
      },
      {
        "light": "icons/icon-light-96.svg",
        "dark": "icons/icon-96.svg",
        "size": 96
      }
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_scripts/page-element-hider.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  }
}