Examine source code of Atheistus

{
  "theme": {
    "images": {
      "theme_frame": "header4.png"
    },
    "colors": {
      "frame": "#0a0678",
      "tab_background_text": "#eff0ad"
    }
  },
  "version": "2.0",
  "name": "Atheistus",
  "manifest_version": 2,
  "description": "Dutch blue"
}