Examine source code of infraredrb

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "infrared",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-005-f5f3cf677b1f132c75ddc7bd319dd1fc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(2, 2, 4, 0.99)",
      "toolbar_text": "rgb(249, 10, 3)",
      "frame": "rgb(6, 10, 12)",
      "tab_background_text": "rgb(250, 8, 2)",
      "toolbar_field": "rgb(40, 25, 24)",
      "toolbar_field_text": "rgb(250, 8, 2)",
      "tab_line": "rgb(250, 8, 2)",
      "popup": "rgb(40, 25, 24)",
      "popup_text": "rgb(250, 8, 2)",
      "tab_loading": "rgb(250, 8, 2)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f99503ab-d5e1-4328-ad27-e99d5b991c46}"
    }
  }
}