Examine source code of noalgo

{
  "manifest_version": 3,
  "name": "noalgo",
  "version": "1.3.2",
  "description": "Blocks the algorithmic feeds on YouTube, Instagram, and Reddit. Direct links, DMs, posting, search, subreddits, and profiles still work.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{feb7bfd1-1189-4b52-be1f-5c3b954fcc7a}",
      "strict_min_version": "115.0"
    }
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "noalgo",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "rules.js",
        "youtube.js"
      ],
      "css": [
        "youtube.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "js": [
        "rules.js",
        "instagram.js"
      ],
      "css": [
        "instagram.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.reddit.com/*"
      ],
      "js": [
        "rules.js",
        "reddit.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "blocked.html",
        "blocked.css",
        "common.css",
        "icons/icon-96.png"
      ],
      "matches": [
        "*://*.youtube.com/*",
        "*://*.instagram.com/*",
        "*://*.reddit.com/*"
      ]
    }
  ]
}