Examine source code of custom chopper by hersche

{
  "theme": {
    "images": {
      "theme_frame": "header.PNG"
    },
    "colors": {
      "frame": "#f2b294",
      "tab_background_text": "#c44002"
    }
  },
  "version": "2.0",
  "name": "custom chopper by hersche",
  "manifest_version": 2,
  "description": "This is my newly designed custom chopper. I wish you all love it as your Firefox theme."
}