Examine source code of Calm dark brown

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Calm dark brown",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-035-ec6e2e3635b86a13a7ebee9a1390e7e7.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(59, 56, 48)",
      "toolbar_text": "rgb(210, 185, 113)",
      "frame": "rgb(41, 39, 33)",
      "tab_background_text": "rgb(164, 146, 127)",
      "toolbar_field": "rgb(45, 42, 39)",
      "toolbar_field_text": "rgb(193, 176, 145)",
      "tab_line": "rgb(209, 182, 113)",
      "popup": "rgb(52, 48, 38)",
      "popup_text": "rgb(202, 176, 114)",
      "ntp_background": "rgb(33, 29, 25)",
      "tab_loading": "rgb(209, 182, 113)"
    }
  }
}