Examine source code of Super Dark Colors

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "SuperDarkColors",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-011-d53e0d0d1538ed554a90e056a2f04eca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(23, 3, 83)",
      "toolbar_text": "rgb(14, 221, 254)",
      "frame": "rgb(125, 8, 37)",
      "tab_background_text": "rgb(118, 255, 5)",
      "toolbar_field": "rgb(83, 6, 88)",
      "toolbar_field_text": "rgb(36, 195, 226)",
      "tab_line": "rgb(2, 20, 24)",
      "popup": "rgb(7, 50, 84)",
      "popup_text": "rgb(64, 179, 200)",
      "tab_loading": "rgb(2, 20, 24)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ed7f4a25-abff-401e-a8c7-9487320c3648}"
    }
  }
}