Examine source code of Black/Gold

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Dark/Orange",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-034-6d9669d30498557e7b5a2db5ecb286d0.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(3, 3, 3)",
      "toolbar_field": "rgb(3, 3, 3)",
      "toolbar_field_text": "rgb(217, 143, 21)",
      "tab_line": "rgb(239, 142, 18)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(239, 142, 18)",
      "tab_loading": "rgb(239, 142, 18)",
      "bookmark_text": "rgb(239, 142, 18)",
      "frame": "rgb(3, 3, 3)",
      "tab_background_text": "rgb(239, 142, 18)"
    }
  }
}