Examine source code of Apple-Silver

{
  "theme": {
    "images": {
      "theme_frame": "mi_primer_personas_header.png"
    },
    "colors": {
      "frame": "#ff9500",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Apple-Silver",
  "manifest_version": 2,
  "description": "silver-gradient background with apple silver logo"
}