Examine source code of Windows 11 Aesthetic

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Windows 11 Aesthetic",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(13, 36, 58)",
      "toolbar_text": "rgba(255, 255, 255, 0.98)",
      "frame": "rgb(13, 36, 58)",
      "tab_background_text": "rgb(206, 219, 233)",
      "toolbar_field": "rgb(9, 27, 37)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.98)",
      "tab_line": "rgba(255, 255, 255, 0.15)",
      "popup": "rgb(9, 27, 37)",
      "popup_text": "rgba(255, 255, 255, 0.98)",
      "button_background_active": "rgb(9, 27, 37)",
      "button_background_hover": "rgba(255, 255, 255, 0.15)",
      "icons_attention": "rgba(255, 255, 255, 0.98)",
      "icons": "rgba(255, 255, 255, 0.8)",
      "ntp_background": "rgb(9, 27, 37)",
      "ntp_text": "rgba(255, 255, 255, 0.9)",
      "popup_border": "rgba(255, 255, 255, 0.15)",
      "popup_highlight": "rgb(0, 0, 0)",
      "tab_loading": "rgb(153, 128, 255)",
      "tab_selected": "rgb(13, 36, 58)",
      "tab_text": "rgba(255, 255, 255, 0.98)",
      "toolbar_bottom_separator": "rgb(14, 2, 32)",
      "toolbar_field_border_focus": "rgb(12, 29, 48)",
      "toolbar_field_border": "rgba(255, 255, 255, 0.15)",
      "toolbar_field_focus": "rgb(9, 27, 37)",
      "toolbar_field_highlight_text": "rgba(255, 255, 255, 0.5)",
      "toolbar_field_highlight": "rgba(12, 29, 48, 0.81)",
      "toolbar_field_text_focus": "rgba(255, 255, 255, 0.98)",
      "toolbar_vertical_separator": "rgb(12, 29, 48)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c8689777-a7a6-407f-9131-3c8f58bb6953}"
    }
  }
}