Examine source code of dulce_exrbd_perfect

{
  "theme": {
    "images": {
      "theme_frame": "preview_large2.jpg"
    },
    "colors": {
      "frame": "#ff00d0",
      "tab_background_text": "#dd00ff"
    }
  },
  "version": "2.0",
  "name": "dulce_exrbd_perfect",
  "manifest_version": 2,
  "description": ":D"
}