Examine source code of ventus and vanitas

{
  "theme": {
    "images": {
      "theme_frame": "ven-van-headerfirefox5copy.jpg"
    },
    "colors": {
      "frame": "#858585",
      "tab_background_text": "#f6ffa1"
    }
  },
  "version": "2.0",
  "name": "ventus and vanitas",
  "manifest_version": 2,
  "description": "ventus \nvanitas\nkingdom hearts\nbirth by sleep\nkey blade"
}