Examine source code of Blue wind

{
  "theme": {
    "images": {
      "theme_frame": "background4.jpg"
    },
    "colors": {
      "frame": "#0c103b",
      "tab_background_text": "#1c1919"
    }
  },
  "version": "2.0",
  "name": "Blue wind",
  "manifest_version": 2,
  "description": "With a blue background you will feel the peace"
}