Examine source code of Maggots

{
  "theme": {
    "images": {
      "theme_frame": "magcopy.JPG"
    },
    "colors": {
      "frame": "#f7f4f4",
      "tab_background_text": "#403df2"
    }
  },
  "version": "2.0",
  "name": "Maggots",
  "manifest_version": 2,
  "description": "What shall we do with a drunken sailor?"
}