Examine source code of greenZone fox

{
  "theme": {
    "images": {
      "theme_frame": "greenZonefox.png"
    },
    "colors": {
      "frame": "#3cf708",
      "tab_background_text": "#a6a6a6"
    }
  },
  "version": "2.0",
  "name": "greenZone fox",
  "manifest_version": 2,
  "description": "Glowing green strip with a blue stroke framing it.  Black and gray background with firefox logo in upper left corner."
}