Examine source code of AboutQuantum

{
  "manifest_version": 2,
  "version": "3.4",
  "name": "AboutQuantum",
  "author": "Anderson",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/about00.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "tab_selected": "rgb(60, 65, 100)",
      "toolbar": "rgba(30, 34, 63)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(30, 34, 63)",
      "tab_background_text": "rgb(220, 220, 220)",
      "toolbar_field": "rgba(255, 255, 255)",
      "toolbar_field_text": "rgb(30, 34, 63)",
      "tab_line": "rgb(60, 65, 100)",
      "popup": "rgba(255, 255, 255)",
      "popup_text": "rgb(30, 34, 63)",
      "tab_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)",
      "ntp_background": "rgba(255, 255, 255, 1)",
      "ntp_text": "rgba(33, 33, 33, 1)",
      "sidebar": "rgba(255, 255, 255, 1)",
      "sidebar_text": "rgba(33, 33, 33, 1)",
      "sidebar_highlight": "#f2f2f2",
      "sidebar_highlight_text": "rgba(33, 33, 33, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2987deca-945f-4132-8bf0-849a80ec99f2}",
      "strict_min_version": "65.0"
    }
  }
}