A user (anon48433008) changed the default like reaction icon to a “beer” icon using Font Awesome, but it wasn’t displaying when giving reactions. They also changed the color of the icon using CSS (common.css). After some help from Arkshine, they were able to fix the issue using a script found on the Discourse Meta forum. However, the CSS code used to change the icon color caused other issues, such as problems with pasting images. The problematic CSS code is .discourse-reactions-actions.has-reacted.has-used-main-reaction .discourse-reactions-reaction-button .reaction-button .d-icon { color: #ffd000;}.