Examine source code of Let's Get Together

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Let's Get Together",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-008-60d2718f8c915b5ba09f31df5555b459.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(158, 71, 71)",
      "toolbar_text": "rgb(255, 192, 36)",
      "frame": "rgb(33, 18, 13)",
      "tab_background_text": "rgb(254, 115, 50)",
      "toolbar_field": "rgb(186, 90, 86)",
      "toolbar_field_text": "rgb(255, 192, 36)",
      "tab_line": "rgb(254, 115, 50)",
      "popup": "rgb(158, 71, 71)",
      "popup_text": "rgb(254, 115, 50)",
      "tab_loading": "rgb(254, 115, 50)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6aee6a4a-8f78-41b7-a9c3-235719f6df80}"
    }
  }
}