Examine source code of Bugs4u

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#3d3718",
      "tab_background_text": "#f5c55d"
    }
  },
  "version": "2.0",
  "name": "Bugs4u",
  "manifest_version": 2,
  "description": "special for bugs4u"
}