Examine source code of Steamy Deco Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Steamy Deco Dark",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-018-0ca3dfc7bb661ec53999d358812ce0ab.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(220, 205, 158)",
      "frame": "rgb(13, 10, 10)",
      "tab_background_text": "rgb(154, 143, 110)",
      "toolbar_field": "rgb(58, 70, 66)",
      "toolbar_field_text": "rgb(220, 205, 158)",
      "tab_line": "rgb(58, 70, 66)",
      "popup": "rgb(58, 70, 66)",
      "popup_text": "rgb(220, 205, 158)",
      "tab_loading": "rgb(58, 70, 66)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{62309a2d-daed-45c2-b6c0-846e7e580866}"
    }
  }
}