Examine source code of GreenGreenGreen

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "GreenGreenGreen",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(46, 139, 67)",
      "toolbar_text": "rgb(252, 247, 248)",
      "frame": "rgb(19, 86, 34)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(18, 170, 73)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(181, 198, 38)",
      "popup": "rgb(143, 15, 78)",
      "popup_text": "rgb(248, 248, 252)",
      "tab_loading": "rgb(181, 198, 38)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{34664072-aa4c-4ee6-a7e2-83bf97bfcf6c}"
    }
  }
}