Examine source code of TryPurple

{
  "theme": {
    "images": {
      "theme_frame": "Naamloos-1.jpg"
    },
    "colors": {
      "frame": "#dcd3e3",
      "tab_background_text": "#dcd3e3"
    }
  },
  "version": "2.0",
  "name": "TryPurple",
  "manifest_version": 2,
  "description": "Try"
}