Examine source code of Windows 11 Red Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Windows 11 Red Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0.6)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(34, 31, 32)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(29, 29, 29, 0.1)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(59, 59, 59)",
      "popup": "rgb(30, 30, 30)",
      "popup_text": "rgb(255, 255, 255)",
      "ntp_background": "rgb(0, 0, 0)",
      "tab_loading": "rgb(179, 110, 218)",
      "tab_selected": "rgba(83, 59, 59, 0.6)",
      "toolbar_field_border_focus": "rgba(41, 41, 41, 0.5)",
      "toolbar_field_border": "rgba(41, 41, 41, 0.5)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b72e6045-39d3-4680-b492-b062d2b3859c}"
    }
  }
}