If your Realm signature is incorrect or needs to be updated, you can customize it in your Profile Settings:
1. Go to your profile avatar at the top right of the Realm Menu and choose 'Settings'
2. From the menu on the left select "Personalization"
3. Please scroll to the bottom of the Personalization page to locate your Signature. After making any desired changes in the textbox, click 'Save' at the bottom right corner.
If you are pasting in text from another source, please note that there may be limitations to the font styles that can be used in REALM.