Examine source code of Christmas Nativity

{
  "theme": {
    "images": {
      "theme_frame": "persona_nativity1.jpg"
    },
    "colors": {
      "frame": "#572424",
      "tab_background_text": "#42c25a"
    }
  },
  "version": "2.0",
  "name": "Christmas Nativity",
  "manifest_version": 2,
  "description": "Christmas nativity cathapol"
}