Examine source code of Purple effect

{
  "theme": {
    "images": {
      "theme_frame": "Flowers2.jpg"
    },
    "colors": {
      "frame": "#f25ec3",
      "tab_background_text": "#d79cf0"
    }
  },
  "version": "2.0",
  "name": "Purple effect",
  "manifest_version": 2
}