Examine source code of Hacknet Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#004cbf",
      "tab_background_text": "#ffa200"
    }
  },
  "version": "2.0",
  "name": "Hacknet Theme",
  "manifest_version": 2,
  "description": "A theme based on the style choice of Hacknet.\nThe game's page: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/a8a865a57298989d98ffbb073115f4e8205bc51ead2b05de2de83e2e5f496a5e/http%3A//hacknet-os.com/\">http://hacknet-os.com/</a>"
}