Examine source code of Sublte Flowers

{
  "theme": {
    "images": {
      "theme_frame": "header1.jpg"
    },
    "colors": {
      "frame": "#918c8c",
      "tab_background_text": "#918c8c"
    }
  },
  "version": "2.0",
  "name": "Sublte Flowers",
  "manifest_version": 2,
  "description": "Black background with gray, subtle flowers."
}