Examine source code of dnb1

{
  "name": "Drum and Bass",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "4579997-dj-house-music-dubstep-techno-drum-and-bass-music-brian-dessert-headphones.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(19, 225, 240, 1)",
      "toolbar": "rgba(56, 54, 56, 1)",
      "bookmark_text": "rgba(19, 225, 240, 1)",
      "toolbar_field": "rgba(56, 54, 56, 1)",
      "toolbar_field_text": "rgba(19, 225, 240, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3f6e6e1a-2df2-45be-a58f-19a854878b49}"
    }
  }
}