Examine source code of Hummingbird 2

{
  "theme": {
    "images": {
      "theme_frame": "hummingbird1.JPG"
    },
    "colors": {
      "frame": "#bbfad4",
      "tab_background_text": "#f2ec7b"
    }
  },
  "version": "2.0",
  "name": "Hummingbird 2",
  "manifest_version": 2,
  "description": "Kolibri"
}