Examine source code of Sliced Pattern

{
  "theme": {
    "images": {
      "theme_frame": "persona_head.jpg"
    },
    "colors": {
      "frame": "#a6a6a6",
      "tab_background_text": "#d6d6d6"
    }
  },
  "version": "2.0",
  "name": "Sliced Pattern",
  "manifest_version": 2,
  "description": "Abstract Pattern."
}