I think you&#x27;re mistaking their symbol for &quot;a different font&quot;. Each one of those has a <i>logotype</i> and a <i>symbol</i>, which make up their visual identity (the word &#x27;logo&#x27; is used interchangeably for those, or their combination). They are merely using the existing symbol as favicon - the stylized N&#x2F;B&#x2F;B. Google&#x27;s symbol at the time was the uppercase G in the same font, so creating a new one for the favicon would be considered a rebranding.