Examine source code of Light Green Wave

{
  "theme": {
    "images": {
      "theme_frame": "ff_persona1.png"
    },
    "colors": {
      "frame": "#61d43e",
      "tab_background_text": "#fff7f7"
    }
  },
  "version": "2.0",
  "name": "Light Green Wave",
  "manifest_version": 2,
  "description": "This persona gives your firefox a fresh green touch."
}