Examine source code of athens acropolis

{
  "theme": {
    "images": {
      "theme_frame": "athensa.jpg"
    },
    "colors": {
      "frame": "#8379f2",
      "tab_background_text": "#050640"
    }
  },
  "version": "2.0",
  "name": "athens acropolis",
  "manifest_version": 2,
  "description": "picture of the Athenian Acropolis"
}