Examine source code of Electric Skies

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#8f2e6f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Electric Skies",
  "manifest_version": 2,
  "description": "A theme based on the shades of colour seen during a lightning storm in the night sky: bright yellow against a backdrop of dark blues and rich purple."
}