Examine source code of beautiful green stuff

{
  "theme": {
    "images": {
      "theme_frame": "beautifull-green-1.jpg"
    },
    "colors": {
      "frame": "#2ce01b",
      "tab_background_text": "#2ce01b"
    }
  },
  "version": "2.0",
  "name": "beautiful green stuff",
  "manifest_version": 2,
  "description": "green is the color of the beginning of life. even in the microscopic way :)...  "
}