Examine source code of Rarity Clean

{
  "theme": {
    "images": {
      "theme_frame": "FFtemaRarity.png"
    },
    "colors": {
      "frame": "#7700ff",
      "tab_background_text": "#cdb0fc"
    }
  },
  "version": "2.0",
  "name": "Rarity Clean",
  "manifest_version": 2,
  "description": "Mady from an awesome wallpaper I found, props to the creator of those!\n(Its Rarity from MLP:FIM)"
}