Examine source code of Appalachian Voices

{
  "theme": {
    "images": {
      "theme_frame": "AppVoices.jpg"
    },
    "colors": {
      "frame": "#1572eb",
      "tab_background_text": "#1c2f63"
    }
  },
  "version": "2.0",
  "name": "Appalachian Voices",
  "manifest_version": 2,
  "description": "Turtle with mountains in background"
}