Examine source code of Monotone Dark

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Monotone Dark",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(8, 11, 33)",
      "toolbar_text": "rgb(195, 211, 255)",
      "frame": "rgb(8, 11, 33)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(23, 26, 47)",
      "toolbar_field_text": "rgba(195, 211, 255, 0.83)",
      "tab_line": "rgba(97, 101, 120, 0.63)",
      "popup": "rgb(23, 26, 47)",
      "popup_text": "rgb(195, 211, 255)",
      "ntp_background": "rgb(8, 11, 33)",
      "ntp_text": "rgb(183, 196, 207)",
      "tab_loading": "rgb(123, 131, 199)",
      "tab_selected": "rgb(8, 11, 33)",
      "toolbar_bottom_separator": "rgb(8, 11, 33)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e4fc14df-80b3-4d85-b67f-aa3fe205c7ee}"
    }
  }
}