Examine source code of Black Silk

{
  "theme": {
    "images": {
      "theme_frame": "BlackSilkTop.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Black Silk",
  "manifest_version": 2,
  "description": "This is a high-resolution silk texture turned Persona for a soft, yet devious feel.  Feel free to email me any Persona suggestions at zhiler@gmail.com!"
}