Examine source code of Soft Sky Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Soft Sky Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.85)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(231, 241, 242)",
      "tab_background_text": "rgb(77, 99, 113)",
      "toolbar_field": "rgba(255, 255, 255, 0.99)",
      "toolbar_field_text": "rgb(119, 119, 119)",
      "tab_line": "rgb(231, 237, 238)",
      "popup": "rgba(246, 252, 255, 0.9)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_hover": "rgb(224, 226, 227)",
      "frame_inactive": "rgb(234, 234, 234)",
      "icons": "rgb(0, 0, 0)",
      "popup_border": "rgb(217, 225, 226)",
      "tab_loading": "rgb(0, 189, 200)",
      "tab_selected": "rgb(255, 255, 255)",
      "tab_text": "rgb(0, 0, 0)",
      "toolbar_bottom_separator": "rgb(224, 226, 227)",
      "toolbar_top_separator": "rgb(234, 234, 234)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{851f1c5b-948d-4e17-b3cb-c104639b5e9e}"
    }
  }
}