Examine source code of solarized-opt

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "solarized-opt",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 43, 54)",
      "toolbar_text": "rgb(147, 161, 161)",
      "frame": "rgb(7, 54, 66)",
      "tab_background_text": "rgb(131, 148, 150)",
      "toolbar_field": "rgb(7, 54, 66)",
      "toolbar_field_text": "rgb(238, 232, 213)",
      "tab_line": "rgb(181, 137, 0)",
      "popup": "rgb(7, 54, 66)",
      "popup_text": "rgb(147, 161, 161)",
      "ntp_background": "rgb(7, 54, 66)",
      "popup_highlight": "rgb(88, 110, 117)",
      "sidebar_border": "rgb(88, 110, 117)",
      "sidebar_highlight": "rgb(147, 161, 161)",
      "sidebar": "rgb(0, 43, 54)",
      "tab_loading": "rgb(181, 137, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{03987132-b30e-48e7-9ac5-2334269f2afa}"
    }
  }
}