Examine source code of Web Notes

{
  "manifest_version": 3,
  "name": "Web Notes",
  "version": "1.0.0",
  "icons": {
    "16": "assets/icons/icon16.png",
    "32": "assets/icons/icon32.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "webnotes@codelearnry.extensions"
    }
  },
  "description": "Add customizable sticky notes to any webpage!",
  "short_name": "Web Notes",
  "permissions": [
    "tabs",
    "scripting",
    "contextMenus",
    "storage",
    "unlimitedStorage",
    "activeTab"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*",
    "*://*/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "author": "Fuseini",
  "minimum_chrome_version": "88",
  "action": {
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "32": "assets/icons/icon32.png",
      "48": "assets/icons/icon48.png",
      "128": "assets/icons/icon128.png"
    },
    "default_title": "Web Notes",
    "default_popup": "popup.html"
  },
  "options_page": "options_page.html",
  "options_ui": {
    "page": "options_page.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "js/background-script.min.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_idle",
      "css": [
        "css/simple-line-icons.min.css"
      ],
      "js": [
        "js/content-script.min.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "resources": [
        "fonts/Simple-Line-Icons.eot",
        "fonts/Simple-Line-Icons.svg",
        "fonts/Simple-Line-Icons.ttf",
        "fonts/Simple-Line-Icons.woff",
        "fonts/Simple-Line-Icons.woff2",
        "fonts/bellota-regular-webfont.woff",
        "fonts/bellota-regular-webfont.woff2",
        "fonts/opensans-regular-webfont.woff",
        "css/simple-line-icons.min.css"
      ]
    }
  ]
}