Examine source code of Regina Caeli

{
  "theme": {
    "images": {
      "theme_frame": "ReginaCaelitop.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#666600"
    }
  },
  "version": "2.0",
  "name": "Regina Caeli",
  "manifest_version": 2,
  "description": "Regina caeli laetare, alleluia! Queen of Heaven, rejoice, alleluia! This is the second in (what appears to be) a series of uniquely Catholic designs featuring the Blessed Virgin Mary."
}