Changing fonts or adjusting font size or color in a Chat room is easy. Here's how:

1. While you're in a Chat session, locate the message area where you usually enter your text.
2. Above the text area, you'll see a small palette icon, with colors and a T (for Text).
3. Click that icon to display the Text and colors toolbar.
4. Click the selections for Bold, Italic, Underline, to change the font or font size, or to change the color of the font.