Examine source code of RecommendLess

{
  "manifest_version": 3,
  "name": "RecommendLess",
  "version": "0.2.3",
  "description": "Blocks algorithmic feed traps while keeping intentional feeds and useful surfaces usable.",
  "homepage_url": "https://recommendless.com/",
  "icons": {
    "16": "assets/icon16.png",
    "32": "assets/icon32.png",
    "48": "assets/icon48.png",
    "64": "assets/icon64.png",
    "96": "assets/icon96.png",
    "128": "assets/icon128.png"
  },
  "permissions": [
    "alarms",
    "declarativeNetRequestWithHostAccess",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "*://*.youtube.com/*",
    "https://recommendless.com/*"
  ],
  "background": {
    "scripts": [
      "src/runtime-config.js",
      "src/surface-definitions.js",
      "src/background.js"
    ]
  },
  "action": {
    "default_icon": {
      "16": "assets/icon16.png",
      "32": "assets/icon32.png"
    },
    "default_popup": "src/popup.html",
    "default_title": "RecommendLess"
  },
  "content_scripts": [
    {
      "matches": [
        "*://youtube.com/*",
        "*://www.youtube.com/*",
        "*://m.youtube.com/*",
        "*://twitter.com/*",
        "*://www.twitter.com/*",
        "*://mobile.twitter.com/*",
        "*://x.com/*",
        "*://www.x.com/*",
        "*://mobile.x.com/*",
        "*://instagram.com/*",
        "*://www.instagram.com/*",
        "*://linkedin.com/*",
        "*://www.linkedin.com/*",
        "*://pikabu.ru/*",
        "*://www.pikabu.ru/*",
        "*://reddit.com/*",
        "*://www.reddit.com/*",
        "*://old.reddit.com/*",
        "*://new.reddit.com/*",
        "*://m.reddit.com/*",
        "*://facebook.com/*",
        "*://www.facebook.com/*",
        "*://m.facebook.com/*",
        "*://tiktok.com/*",
        "*://www.tiktok.com/*",
        "*://m.tiktok.com/*",
        "*://threads.com/*",
        "*://www.threads.com/*",
        "*://threads.net/*",
        "*://www.threads.net/*",
        "*://twitch.tv/*",
        "*://www.twitch.tv/*",
        "*://m.twitch.tv/*",
        "*://tumblr.com/*",
        "*://www.tumblr.com/*",
        "*://pinterest.com/*",
        "*://www.pinterest.com/*"
      ],
      "js": [
        "src/surface-definitions.js",
        "src/engine.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://recommendless.com/app*"
      ],
      "js": [
        "src/activation-bridge.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "recommendless@grumpyoats.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}