Examine source code of Mantis by JWP

{
  "theme": {
    "images": {
      "theme_frame": "matis.jpg"
    },
    "colors": {
      "frame": "#53870f",
      "tab_background_text": "#ace84b"
    }
  },
  "version": "2.0",
  "name": "Mantis by JWP",
  "manifest_version": 2,
  "description": "Praying mantis by John Weaver"
}