Examine source code of Agatha

{
  "theme": {
    "images": {
      "theme_frame": "Untitled-3.jpg"
    },
    "colors": {
      "frame": "#fc5b9e",
      "tab_background_text": "#fc5b9e"
    }
  },
  "version": "2.0",
  "name": "Agatha",
  "manifest_version": 2
}