Examine source code of Hotspot Hub

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Hotspot",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-011-d53e0d0d1538ed554a90e056a2f04eca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0.8)",
      "toolbar_text": "rgb(45, 255, 238)",
      "frame": "rgb(17, 46, 52)",
      "tab_background_text": "rgb(132, 125, 134)",
      "toolbar_field": "rgba(0, 0, 0, 0.2)",
      "toolbar_field_text": "rgb(43, 161, 145)",
      "tab_line": "rgb(0, 246, 255)",
      "popup": "rgb(22, 54, 75)",
      "popup_text": "rgb(64, 248, 239)",
      "tab_loading": "rgb(0, 246, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fe334860-fbd1-4db0-8fce-f840a4c8c186}"
    }
  }
}