Examine source code of Electric Night

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#f0b941",
      "tab_background_text": "#bd7904"
    }
  },
  "version": "2.0",
  "name": "Electric Night",
  "manifest_version": 2,
  "description": "Ceramic insulators against a night sky, exciting stuff!"
}