Examine source code of Darkmaterial Gray Orange

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#3d3d3d",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Darkmaterial Gray Orange",
  "manifest_version": 2,
  "description": "Thanks/Credits to DaKoder: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/9ad7b42a14ff552654e9c1e5c8816ec37469e3a263586d0f4149cd20df8f94ea/https%3A//dakoder.deviantart.com/art/MinFlat-Dark-Material-Design-Wallpaper-4K-509845098\">https://dakoder.deviantart.com/art/MinFlat-Dark-Material-Design-Wallpaper-4K-509845098</a>"
}