Examine source code of Shamrock Lights

{
  "theme": {
    "images": {
      "theme_frame": "shamrocklightH2.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#b2f099"
    }
  },
  "version": "2.0",
  "name": "Shamrock Lights",
  "manifest_version": 2,
  "description": "Saint Patrick's Day, St. Patrick, shamrocks, clover leaves, green, Irish, Ireland,"
}