Examine source code of bullet holes

{
  "theme": {
    "images": {
      "theme_frame": "bulletholes1.jpg"
    },
    "colors": {
      "frame": "#93939c",
      "tab_background_text": "#ed0707"
    }
  },
  "version": "2.0",
  "name": "bullet holes",
  "manifest_version": 2,
  "description": "bulletholes"
}