Examine source code of Digital_Rain

{
  "name": "Digital_Rain",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Digital_rain_animation_medium_letters_shine.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(221, 255, 0, 1)",
      "toolbar": "rgba(0, 255, 0, 0.25)",
      "bookmark_text": "rgba(0, 255, 0, 1)",
      "toolbar_field": "rgba(0, 255, 0, 0.47)",
      "toolbar_field_text": "rgba(221, 255, 0, 1)"
    }
  }
}