Examine source code of classic-lilac

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "classy lilac",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(232, 232, 232)",
      "toolbar_text": "rgb(89, 59, 90)",
      "frame": "rgb(22, 22, 22)",
      "tab_background_text": "rgb(136, 136, 136)",
      "toolbar_field": "rgba(223, 223, 223, 0.95)",
      "toolbar_field_text": "rgb(89, 59, 90)",
      "tab_line": "rgb(174, 174, 174)",
      "popup": "rgba(254, 238, 255, 0.95)",
      "popup_text": "rgb(89, 59, 90)",
      "button_background_active": "rgba(162, 90, 166, 0.2)",
      "button_background_hover": "rgba(162, 90, 166, 0.1)",
      "icons": "rgb(162, 90, 166)",
      "ntp_background": "rgb(226, 206, 226)",
      "ntp_text": "rgb(89, 59, 90)",
      "popup_border": "rgb(89, 59, 90)",
      "popup_highlight_text": "rgb(89, 59, 90)",
      "popup_highlight": "rgba(219, 180, 222, 0.52)",
      "sidebar_border": "rgb(89, 59, 90)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(162, 90, 166)",
      "sidebar_text": "rgb(22, 22, 22)",
      "sidebar": "rgb(249, 249, 249)",
      "toolbar_bottom_separator": "rgb(89, 59, 90)",
      "toolbar_field_border_focus": "rgba(89, 59, 90, 0.1)",
      "toolbar_field_border": "rgba(89, 59, 90, 0.1)",
      "toolbar_field_focus": "rgb(254, 238, 255)",
      "toolbar_field_highlight_text": "rgb(89, 59, 90)",
      "toolbar_field_highlight": "rgba(219, 180, 222, 0.52)",
      "toolbar_field_text_focus": "rgb(89, 59, 90)",
      "toolbar_top_separator": "rgb(22, 22, 22)",
      "tab_loading": "rgb(174, 174, 174)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{99f65d03-430c-43ff-b975-1b0203082028}"
    }
  }
}