Examine source code of macOS Dark Theme

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "macOS Dark Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(57, 58, 59)",
      "toolbar_field": "rgb(68, 69, 70)",
      "toolbar_field_text": "rgb(232, 232, 232)",
      "tab_line": "rgb(47, 129, 233)",
      "popup": "rgb(55, 56, 58)",
      "popup_text": "rgb(217, 217, 217)",
      "tab_loading": "rgb(47, 129, 233)",
      "bookmark_text": "rgb(233, 233, 233)",
      "frame": "rgb(42, 43, 46)",
      "tab_background_text": "rgb(150, 151, 152)"
    }
  }
}