Examine source code of UnsafeYT

{
  "manifest_version": 3,
  "version": "1.0.7.1",
  "name": "UnsafeYT",
  "icons": {
    "128": "textures/icon.png"
  },
  "description": "Decode UnsafeYT videos",
  "content_scripts": [
    {
      "matches": [
        "https://www.twitch.tv/*"
      ],
      "js": [
        "runners/twitch.js"
      ]
    },
    {
      "matches": [
        "https://www.facebook.com/*"
      ],
      "js": [
        "runners/facebook.js"
      ]
    },
    {
      "matches": [
        "https://x.com/*"
      ],
      "js": [
        "runners/x.js"
      ]
    },
    {
      "matches": [
        "https://www.instagram.com/*"
      ],
      "js": [
        "runners/instagram.js"
      ]
    },
    {
      "matches": [
        "https://www.tiktok.com/*"
      ],
      "js": [
        "runners/tiktok.js"
      ]
    },
    {
      "matches": [
        "https://www.bilibili.com/*"
      ],
      "js": [
        "runners/bilibili.js"
      ]
    },
    {
      "matches": [
        "https://www.bilibili.tv/*"
      ],
      "js": [
        "runners/bilibili-tv.js"
      ]
    },
    {
      "matches": [
        "https://www.reddit.com/*"
      ],
      "js": [
        "runners/reddit.js"
      ]
    },
    {
      "matches": [
        "https://vimeo.com/*"
      ],
      "js": [
        "runners/vimeo.js"
      ]
    },
    {
      "matches": [
        "https://vk.com/*",
        "https://vkvideo.ru/*"
      ],
      "js": [
        "runners/vk.js"
      ]
    },
    {
      "matches": [
        "https://www.youtube.com/*",
        "https://m.youtube.com/*"
      ],
      "js": [
        "runners/youtube.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "shaders/screen.frag",
        "shaders/screen.vrt"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_popup": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "alex.suspicious@gmail.com"
    }
  }
}