Examine source code of Atomic lighting

{
  "theme": {
    "images": {
      "theme_frame": "AtomicLightshow2.jpg"
    },
    "colors": {
      "frame": "#aa00ff",
      "tab_background_text": "#ff0000"
    }
  },
  "version": "2.0",
  "name": "Atomic lighting",
  "manifest_version": 2,
  "description": "Made it using a program called Flame. Pretty fun thing."
}