Examine source code of Dac's Darker? Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dac's Darker? Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(158, 156, 132)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(216, 219, 164)",
      "toolbar_field": "rgb(20, 21, 21)",
      "toolbar_field_text": "rgb(187, 193, 192)",
      "tab_line": "rgb(60, 64, 54)",
      "popup": "rgb(8, 8, 8)",
      "popup_text": "rgb(78, 77, 70)",
      "button_background_active": "rgb(0, 0, 0)",
      "button_background_hover": "rgb(29, 32, 32)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons_attention": "rgb(219, 142, 0)",
      "icons": "rgb(104, 104, 87)",
      "ntp_background": "rgb(4, 4, 4)",
      "ntp_text": "rgb(53, 53, 53)",
      "popup_border": "rgb(38, 43, 43)",
      "popup_highlight_text": "rgba(184, 169, 66, 0.77)",
      "popup_highlight": "rgb(22, 22, 21)",
      "sidebar_border": "rgb(82, 89, 89)",
      "sidebar_highlight_text": "rgb(40, 40, 40)",
      "sidebar_highlight": "rgb(4, 4, 4)",
      "sidebar_text": "rgb(130, 132, 113)",
      "sidebar": "rgb(8, 8, 8)",
      "tab_background_separator": "rgb(50, 50, 56)",
      "tab_loading": "rgb(0, 0, 0)",
      "tab_selected": "rgb(12, 21, 21)",
      "tab_text": "rgb(159, 179, 179)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "toolbar_field_border_focus": "rgb(26, 26, 26)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(177, 169, 33)",
      "toolbar_field_highlight": "rgb(0, 0, 0)",
      "toolbar_field_separator": "rgb(44, 57, 57)",
      "toolbar_field_text_focus": "rgb(156, 164, 164)",
      "toolbar_top_separator": "rgb(23, 26, 26)",
      "toolbar_vertical_separator": "rgb(92, 114, 117)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{eb2bf645-db8e-438d-9cbb-008342e8e7f9}"
    }
  }
}