Examine source code of Tangerine Trees

{
  "theme": {
    "images": {
      "theme_frame": "TangareneH.jpg"
    },
    "colors": {
      "frame": "#e4eb1a",
      "tab_background_text": "#6403ff"
    }
  },
  "version": "2.0",
  "name": "Tangerine Trees",
  "manifest_version": 2,
  "description": "Picture yourself in a boat on a river,\nWith tangerine trees and marmalade skies. For Marion"
}