Examine source code of sarkasmo

{
  "theme": {
    "images": {
      "theme_frame": "asdfg.jpg"
    },
    "colors": {
      "frame": "#79797a",
      "tab_background_text": "#96a4d9"
    }
  },
  "version": "2.0",
  "name": "sarkasmo",
  "manifest_version": 2
}