Examine source code of Dark Mild Sunset

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sunset",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-034-e0dfa84411058d2e5627f19f1ea501ca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(243, 236, 236)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(244, 230, 230)",
      "tab_line": "rgb(207, 111, 113)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(87, 28, 29)",
      "button_background_hover": "rgb(89, 48, 49)",
      "icons": "rgb(207, 111, 113)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_highlight": "rgb(89, 48, 49)",
      "sidebar_highlight": "rgb(89, 48, 49)",
      "sidebar_text": "rgb(253, 248, 248)",
      "sidebar": "rgb(0, 0, 0)",
      "tab_loading": "rgb(207, 111, 113)",
      "tab_selected": "rgb(87, 28, 29)",
      "tab_text": "rgb(235, 213, 213)",
      "toolbar_field_border": "rgb(207, 111, 113)",
      "toolbar_field_highlight": "rgb(89, 48, 49)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fed2390d-9228-4807-b15c-ec6d7e3e6944}"
    }
  }
}