When applying for trademark registration, the appearance of the characters used as the trademark text, such as italics, Song fonts, bold fonts, or designing the characters into artistic fonts, etc. No matter what font is used for the registered trademark (provided that it does not infringe the copyright of the font), it will be protected by the trademark law after being registered as a trademark. Others cannot successfully register it if they use other fonts, and it will also cause infringement when used as a trademark.