Examine source code of Heart Blast

{
  "theme": {
    "images": {
      "theme_frame": "HeartBlastHeader2.jpg"
    },
    "colors": {
      "frame": "#baa6bf",
      "tab_background_text": "#b581db"
    }
  },
  "version": "2.0",
  "name": "Heart Blast",
  "manifest_version": 2,
  "description": "A wash of golden hearts with purple and red heart kaleidoscope designs in a radiating burst."
}