Apparently Apple uses U+F8FF, part of the Unicode &quot;Private Use Area&quot;, to represent its logo.  It&#x27;s not surprising that it fails to render on non-Apple platforms, given this warning in <a href="http:&#x2F;&#x2F;www.unicode.org&#x2F;Public&#x2F;MAPPINGS&#x2F;VENDORS&#x2F;APPLE&#x2F;CORPCHAR.TXT" rel="nofollow">http:&#x2F;&#x2F;www.unicode.org&#x2F;Public&#x2F;MAPPINGS&#x2F;VENDORS&#x2F;APPLE&#x2F;CORPCHA...</a> :<p><pre><code>  # The following (1) is for the Mac OS Roman encoding
  # (also used in Symbol &amp; Croatian).
  # NOTE: The graphic image associated with the Apple logo character is
  # not authorized for use without permission of Apple, and unauthorized
  # use might constitute trademark infringement.
  0xF8FF	# Apple logo # Roman-0xF0, Symbol-0xF0, Croatian-0xD8
</code></pre>
Additional references:
<a href="http:&#x2F;&#x2F;hea-www.harvard.edu&#x2F;~fine&#x2F;OSX&#x2F;unicode_apple_logo.html" rel="nofollow">http:&#x2F;&#x2F;hea-www.harvard.edu&#x2F;~fine&#x2F;OSX&#x2F;unicode_apple_logo.html</a>
<a href="http:&#x2F;&#x2F;www.fileformat.info&#x2F;info&#x2F;unicode&#x2F;char&#x2F;f8ff&#x2F;index.htm" rel="nofollow">http:&#x2F;&#x2F;www.fileformat.info&#x2F;info&#x2F;unicode&#x2F;char&#x2F;f8ff&#x2F;index.htm</a>
<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Private_Use_Areas" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Private_Use_Areas</a>