Examine source code of Sweet Nostalgia 2

{
  "theme": {
    "images": {
      "theme_frame": "Vin1Per1.jpg"
    },
    "colors": {
      "frame": "#453c2f",
      "tab_background_text": "#f4c1f5"
    }
  },
  "version": "2.0",
  "name": "Sweet Nostalgia 2",
  "manifest_version": 2,
  "description": "Old photographs, dried flowers... sweet memories"
}