Examine source code of Purple Forest

{
  "theme": {
    "images": {
      "theme_frame": "persona.jpg"
    },
    "colors": {
      "frame": "#af8db8",
      "tab_background_text": "#51005e"
    }
  },
  "version": "2.0",
  "name": "Purple Forest",
  "manifest_version": 2,
  "description": "This is a winter nature scene dialed up to purple."
}