Examine source code of Silky flow

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Silky flow",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(217, 217, 217, 0.75)",
      "toolbar_text": "rgb(49, 49, 49)",
      "frame": "rgb(217, 217, 217)",
      "tab_background_text": "rgb(73, 90, 106)",
      "toolbar_field": "rgba(255, 255, 255, 0.75)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(29, 0, 127)",
      "popup": "rgb(225, 231, 233)",
      "popup_text": "rgb(60, 60, 60)",
      "toolbar_field_focus": "rgb(255, 255, 255)",
      "tab_loading": "rgb(29, 0, 127)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{990e39b2-3a10-457e-84ca-63cdbe9226d2}"
    }
  }
}