Examine source code of Sergio_1

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sergio_1",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(50, 55, 67)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(50, 55, 67)",
      "tab_background_text": "rgb(210, 210, 210)",
      "toolbar_field": "rgb(72, 98, 131)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(25, 123, 236, 0.9)",
      "popup": "rgb(72, 98, 131)",
      "popup_text": "rgb(230, 230, 230)",
      "button_background_active": "rgb(72, 98, 131)",
      "button_background_hover": "rgb(90, 90, 90)",
      "popup_highlight": "rgb(90, 90, 90)",
      "sidebar_border": "rgb(150, 150, 150)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(53, 87, 130)",
      "sidebar_text": "rgb(210, 210, 210)",
      "sidebar": "rgb(50, 55, 67)",
      "tab_background_separator": "rgb(150, 150, 150)",
      "tab_loading": "rgb(81, 94, 128)",
      "toolbar_field_border_focus": "rgba(25, 123, 236, 0.9)",
      "toolbar_field_focus": "rgb(72, 98, 131)",
      "toolbar_field_highlight_text": "rgb(210, 210, 210)",
      "toolbar_field_highlight": "rgb(72, 98, 131)"
    }
  }
}