Examine source code of Easter Butterflies

{
  "theme": {
    "images": {
      "theme_frame": "EasterButterflies1.jpg"
    },
    "colors": {
      "frame": "#fcf800",
      "tab_background_text": "#016113"
    }
  },
  "version": "2.0",
  "name": "Easter Butterflies",
  "manifest_version": 2,
  "description": "Easter, Butterflies, Lilly, Yellow, Orange, Green, Spring, Rebirth, Renewal, Blooming."
}