Examine source code of Abstract Grey Lines

{
  "theme": {
    "images": {
      "theme_frame": "Header1.jpg"
    },
    "colors": {
      "frame": "#4f4f4f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Abstract Grey Lines",
  "manifest_version": 2,
  "description": "This is my first skin, didnt really put much effort into it literally took me 5 mins to do. \nRate + Comment :)"
}