Examine source code of Viena & sunset

{
  "theme": {
    "images": {
      "theme_frame": "eyeofthehorse.jpg"
    },
    "colors": {
      "frame": "#f5b37a",
      "tab_background_text": "#eb793b"
    }
  },
  "version": "2.0",
  "name": "Viena & sunset",
  "manifest_version": 2,
  "description": "My finnhorsemare and nice sunset"
}