Examine source code of FreshFeedApp

{
  "manifest_version": 3,
  "name": "FreshFeed — Reset your YouTube feed",
  "short_name": "FreshFeed",
  "version": "0.9.1",
  "description": "Hide YouTube's algorithm. Pick your topics, get a custom feed of fresh videos with no watch-history influence.",
  "author": "FreshFeed",
  "homepage_url": "https://freshfeed.app",
  "browser_specific_settings": {
    "gecko": {
      "id": "freshfeed@freshfeed.app",
      "strict_min_version": "127.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "FreshFeed",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "*://*.youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "logo.png"
      ],
      "matches": [
        "*://*.youtube.com/*"
      ]
    }
  ]
}