Examine source code of Netscape Navigator DARK

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Netscape Navigator DARK",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(7, 50, 84)",
      "toolbar_text": "rgb(65, 232, 205)",
      "frame": "rgb(0, 10, 39)",
      "tab_background_text": "rgb(24, 156, 180)",
      "toolbar_field": "rgb(24, 74, 98)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(24, 156, 180)",
      "popup": "rgb(21, 60, 86)",
      "popup_text": "rgb(65, 232, 205)",
      "tab_loading": "rgb(24, 156, 180)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b17ab68d-e854-4574-bda3-d14aaa286dd7}"
    }
  }
}