Examine source code of Geometric blues

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "black and blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-026-829b05416f823e170310e7c826ad1bec.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(11, 11, 11)",
      "toolbar_text": "rgb(223, 223, 223)",
      "frame": "rgb(4, 12, 102)",
      "tab_background_text": "rgb(130, 130, 130)",
      "toolbar_field": "rgb(53, 53, 53)",
      "toolbar_field_text": "rgb(223, 223, 223)",
      "tab_line": "rgb(55, 203, 232)",
      "popup": "rgb(11, 11, 11)",
      "popup_text": "rgb(169, 169, 169)",
      "tab_loading": "rgb(55, 203, 232)"
    }
  }
}