Examine source code of Environmentaly

{
  "theme": {
    "images": {
      "theme_frame": "nuclear.png"
    },
    "colors": {
      "frame": "#00c227",
      "tab_background_text": "#00ff37"
    }
  },
  "version": "2.0",
  "name": "Environmentaly",
  "manifest_version": 2,
  "description": "Don't get nuclear, ne environmental!"
}