Examine source code of Hallowed Night by MaDonna

{
  "name": "Hallowed Night by MaDonna",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "HallowedNightH.jpg"
    },
    "colors": {
      "frame": "rgba(102, 135, 42, 1)",
      "tab_background_text": "#ffffff",
      "toolbar": "rgba(100, 135, 40, 0)",
      "bookmark_text": "rgba(255, 254, 171, 1)",
      "toolbar_field": "rgba(100, 135, 40, 0.07)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}