Examine source code of Hello Kitty Ladybug

{
  "theme": {
    "images": {
      "theme_frame": "HKLBheader.jpg"
    },
    "colors": {
      "frame": "#423939",
      "tab_background_text": "#080000"
    }
  },
  "version": "2.0",
  "name": "Hello Kitty Ladybug",
  "manifest_version": 2,
  "description": "Hello Kitty as a ladybug"
}