Examine source code of Duchess Fireworks

{
  "theme": {
    "images": {
      "theme_frame": "Headerr.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Duchess Fireworks",
  "manifest_version": 2,
  "description": "My Own Personal firework photos from New Year."
}