Examine source code of green bubbles_

{
  "theme": {
    "images": {
      "theme_frame": "greenbubbles4.jpg"
    },
    "colors": {
      "frame": "#88c286",
      "tab_background_text": "#f1faa3"
    }
  },
  "version": "2.0",
  "name": "green bubbles_",
  "manifest_version": 2
}