Examine source code of bY Hacker Programming

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#343838",
      "tab_background_text": "#31c6e8"
    }
  },
  "version": "2.0",
  "name": "bY Hacker Programming",
  "manifest_version": 2,
  "description": "Dark theme for fans of programming and hacking.\n\nAuth.: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/5fb3c723801dc84576140c3fb4e169c6bb589ade7c5a6139bf4e5689f5ff9c9b/http%3A//studiya.of.by/\" title=\"Programming and design\">Vladimir Perkun</a>"
}