Examine source code of VScreenshot Assistant

{
  "manifest_version": 3,
  "name": "__MSG_extension_name__",
  "version": "1.9.3",
  "default_locale": "ja",
  "description": "__MSG_extension_description__",
  "icons": {
    "16": "img/icon-16.png",
    "48": "img/icon-48.png",
    "96": "img/icon-96.png",
    "128": "img/icon-128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "contextMenus",
    "webNavigation",
    "clipboardWrite"
  ],
  "host_permissions": [
    "https://i.ytimg.com/*",
    "https://public.spwn.jp/*",
    "https://img.cdn.nimg.jp/*",
    "https://nfc-api.hololive-fc.com/*",
    "https://nfc-api.tokinosora-fc.com/*"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "action": {
    "default_title": "__MSG_extension_name__",
    "default_icon": {
      "16": "img/icon-16-disabled.png",
      "24": "img/icon-24-disabled.png",
      "32": "img/icon-32-disabled.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.youtube.com/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-youtube.js"
      ]
    },
    {
      "matches": [
        "https://*.spwn.jp/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-spwn.js"
      ]
    },
    {
      "matches": [
        "https://*.nicovideo.jp/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-nicovideo.js"
      ]
    },
    {
      "matches": [
        "https://*.twitch.tv/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-twitch.js"
      ]
    },
    {
      "matches": [
        "https://*.hololive-fc.com/*",
        "https://*.tokinosora-fc.com/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-hololive-fc.js"
      ]
    },
    {
      "matches": [
        "https://*.live.eplus.jp/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-streaming-plus.js"
      ]
    },
    {
      "matches": [
        "https://*.zan-live.com/*"
      ],
      "js": [
        "js/vendor-contents.js",
        "js/contents-zan.js"
      ]
    },
    {
      "matches": [
        "https://twitter.com/intent/tweet*",
        "https://x.com/intent/post*"
      ],
      "js": [
        "js/contents-twitter.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "js/inject-twitter.js"
      ],
      "matches": [
        "*://*.twitter.com/*",
        "*://*.x.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{484debae-9b6b-4f02-9179-5a32a23e6c15}"
    }
  }
}