Examine source code of Shotgun

{
  "theme": {
    "images": {
      "theme_frame": "Shotgun.jpg"
    },
    "colors": {
      "frame": "#d1d1d1",
      "tab_background_text": "#bdbdbd"
    }
  },
  "version": "2.0",
  "name": "Shotgun",
  "manifest_version": 2,
  "description": "Shotgun gun tactical guns firearm swat special forces carbon fiber black dark nra 2nd amendment second 12gauge shooting police cop cops"
}