Examine source code of Green Means Clean

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#24974a",
      "tab_background_text": "#f7faf9"
    }
  },
  "version": "2.0",
  "name": "Green Means Clean",
  "manifest_version": 2,
  "description": "Personas broke so here I am. Using it to make my firefox window match the task bar but feel free to use."
}