Examine source code of soft, simple green

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "simple, soft green",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(242, 248, 236)",
      "toolbar_text": "rgb(73, 92, 58)",
      "frame": "rgb(217, 224, 198)",
      "tab_background_text": "rgb(119, 97, 14)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(56, 85, 50)",
      "tab_line": "rgb(109, 117, 90)",
      "popup": "rgba(231, 238, 229, 0.89)",
      "popup_text": "rgb(76, 100, 59)",
      "tab_loading": "rgb(109, 117, 90)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5db94431-fcec-4c3a-b0bc-becb6e8ecfa1}"
    }
  }
}