Examine source code of Windows 2000 Modern

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Windows 2000 Modern",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(221, 221, 221)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(46, 81, 148)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(201, 205, 207)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(221, 221, 221)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_active": "rgba(105, 190, 246, 0.48)",
      "button_background_hover": "rgba(63, 156, 231, 0.21)",
      "icons": "rgb(0, 0, 0)",
      "ntp_background": "rgb(227, 227, 221)",
      "popup_border": "rgb(0, 0, 0)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bf3707c4-6f2d-47e8-95b2-e5dcf43025a9}"
    }
  }
}