Examine source code of Dark Olive Green

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Olive Green",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(33, 34, 26)",
      "toolbar_text": "rgb(143, 143, 143)",
      "frame": "rgb(18, 19, 14)",
      "tab_background_text": "rgb(81, 86, 68)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(45, 48, 35)",
      "popup": "rgb(3, 3, 3)",
      "popup_text": "rgb(141, 158, 118)",
      "button_background_hover": "rgb(93, 123, 48)",
      "tab_loading": "rgb(45, 48, 35)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2304181e-7a58-4ae1-94ef-11a40c5cbb15}"
    }
  }
}