Examine source code of eterchronos

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "eterchronos",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(13, 14, 15)",
      "toolbar_text": "rgb(248, 112, 140)",
      "frame": "rgb(13, 14, 15)",
      "tab_background_text": "rgb(203, 203, 203)",
      "toolbar_field": "rgb(68, 71, 90)",
      "toolbar_field_text": "rgb(203, 203, 203)",
      "tab_line": "rgb(230, 107, 130)",
      "popup": "rgb(13, 14, 15)",
      "popup_text": "rgb(203, 203, 203)",
      "tab_loading": "rgb(230, 107, 130)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3fa4d3b2-917a-47f9-8c34-3310519f034f}"
    }
  }
}