Examine source code of Space Nova

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#d9ff00"
    }
  },
  "version": "2.0",
  "name": "Space Nova",
  "manifest_version": 2,
  "description": "The beauty of space. As ran through filters.\nI know it looks kinda girly, if you want it in other colours ask and I'll see what I can do."
}