Examine source code of puple splash

{
  "theme": {
    "images": {
      "theme_frame": "purple-splash-header.png"
    },
    "colors": {
      "frame": "#878383",
      "tab_background_text": "#f2eaea"
    }
  },
  "version": "2.0",
  "name": "puple splash",
  "manifest_version": 2
}