Examine source code of Sad Kitty lite

{
  "theme": {
    "images": {
      "theme_frame": "SadKittyLite.jpg"
    },
    "colors": {
      "frame": "#e8a987",
      "tab_background_text": "#080000"
    }
  },
  "version": "2.0",
  "name": "Sad Kitty lite",
  "manifest_version": 2,
  "description": "A lighter version of Sad Kitty only a bit more hungry and maybe a tiny bit more sad!"
}