To Format Label Styles
1. On the Math Formatting tab, in the Label Styles group, click the Label Styles list and select a label.
2. Click 
, 
, or 
to set the font style.
, , or to set the font style.3. Click 
and select a color from the list.
and select a color from the list.When you change the label style setting, you see a preview of the changed style in the Label Styles box.
All the math elements in the worksheet that carry the selected label are automatically updated with the new style.
4. To revert the selected label to its default style, click the Restore Label Style button 
.
.