Examine source code of Giga Theme

{
  "theme": {
    "images": {
      "theme_frame": "g_header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Giga Theme",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/ac2d6594c29545030973892c3e8381b1702b15567e1a110653e9a2fd797b2b18/http%3A//GIGA.DE\" rel=\"nofollow\">GIGA.DE</a> Theme"
}