Examine source code of Dark Abode

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark abode",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-036-40a272fe657f748396e017c7a64ee2dc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(25, 27, 49)",
      "toolbar_text": "rgb(93, 237, 245)",
      "frame": "rgb(5, 10, 33)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(18, 115, 111)",
      "toolbar_field_text": "rgb(244, 252, 252)",
      "tab_line": "rgb(205, 35, 185)",
      "popup": "rgb(26, 202, 164)",
      "popup_text": "rgb(4, 11, 19)",
      "tab_loading": "rgb(205, 35, 185)"
    }
  }
}