Examine source code of Old Roblox Logo

{
  "name": "Old Roblox Logo",
  "version": "1.0.7",
  "description": "Replace the new Roblox logo with the old one.",
  "manifest_version": 2,
  "author": "Sego",
  "browser_specific_settings": {
    "gecko": {
      "id": "oldrblxlogo@sego.app"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.roblox.com/*",
        "https://web.roblox.com/*"
      ],
      "run_at": "document_start",
      "css": [
        "css/rblx.css"
      ],
      "js": [
        "js/rblx.js"
      ]
    },
    {
      "matches": [
        "https://about.roblox.com/*",
        "https://careers.roblox.com/*",
        "https://brands.roblox.com/*"
      ],
      "run_at": "document_start",
      "css": [
        "css/about.css"
      ],
      "js": [
        "js/favicon.js"
      ]
    },
    {
      "matches": [
        "https://en.help.roblox.com/*"
      ],
      "run_at": "document_start",
      "css": [
        "css/help.css"
      ],
      "js": [
        "js/favicon.js"
      ]
    }
  ],
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  }
}