Examine source code of FoxyWitch

{
  "theme": {
    "images": {
      "theme_frame": "FoxyWitchHead.jpg"
    },
    "colors": {
      "frame": "#5463a1",
      "tab_background_text": "#fcf9f9"
    }
  },
  "version": "2.0",
  "name": "FoxyWitch",
  "manifest_version": 2,
  "description": "Some times you may catch one on a full moon night, the foxywitch flying by on her broom..."
}