Examine source code of Adobe Lightroom

{
  "theme": {
    "images": {
      "theme_frame": "adobe_lr_header.jpg"
    },
    "colors": {
      "frame": "#2c333b",
      "tab_background_text": "#141414"
    }
  },
  "version": "2.0",
  "name": "Adobe Lightroom",
  "manifest_version": 2,
  "description": "Adobe Lightroom Style"
}