Examine source code of Hoppy Spring

{
  "theme": {
    "images": {
      "theme_frame": "bunny3val.jpg"
    },
    "colors": {
      "frame": "#ffcccc",
      "tab_background_text": "#996633"
    }
  },
  "version": "2.0",
  "name": "Hoppy Spring",
  "manifest_version": 2,
  "description": "Lop eared easter bunny rabbit with pink and yellow valentine hearts"
}