Examine source code of RoSeal - Augmented Roblox Experience

{
  "manifest_version": 2,
  "short_name": "RoSeal",
  "name": "__MSG_manifest_name__",
  "description": "__MSG_manifest_description__",
  "author": "roseal.live",
  "version": "2.1.57.0",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "128.0",
      "id": "{f4f4223a-ff30-4961-b9c0-6a71b7a32aaf}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "128.0"
    }
  },
  "icons": {
    "64": "img/icon/64.png",
    "128": "img/icon/128.png",
    "256": "img/icon/256.png",
    "512": "img/icon/512.png"
  },
  "default_locale": "en",
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "roseal_ruleset_1",
        "enabled": true,
        "path": "dnr_rules.json"
      }
    ]
  },
  "permissions": [
    "*://*.roblox.com/*",
    "*://*.roseal.live/*",
    "storage",
    "declarativeNetRequestWithHostAccess",
    "webRequest",
    "alarms"
  ],
  "optional_permissions": [
    "*://*.rolimons.com/*",
    "cookies",
    "notifications"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.roseal.live/*"
      ],
      "js": [
        "js/roseal.js"
      ],
      "all_frames": true,
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.roblox.com/*",
        "https://create.roblox.com/*"
      ],
      "js": [
        "js/main.js"
      ],
      "all_frames": true,
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://www.roblox.com/*",
        "https://create.roblox.com/*"
      ],
      "js": [
        "js/inject.js"
      ],
      "world": "MAIN",
      "all_frames": true,
      "run_at": "document_start"
    }
  ],
  "options_ui": {
    "page": "html/popup.html?options"
  },
  "incognito": "spanning",
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "web_accessible_resources": [
    "css/*",
    "fonts/*",
    "img/*",
    "html/popup.html"
  ],
  "browser_action": {
    "default_title": "__MSG_manifest_action_title__"
  }
}