Examine source code of VintageRender

{
  "manifest_version": 2,
  "name": "VintageRender",
  "version": "2.0.0",
  "description": "Apply retro CRT and 90s aesthetics to modern websites.",
  "permissions": [
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "retro/engine.js"
    ],
    "persistent": false
  },
  "icons": {
    "48": "static/crt.svg"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "raster/flicker.js",
        "phosphor/glow.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_action": {
    "default_title": "VintageRender",
    "default_popup": "static/console.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "DanteSchuppel7804@outlook.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}