Examine source code of Zerlek

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#0037ff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Zerlek",
  "manifest_version": 2,
  "description": "evo test"
}