1. Select View > Preferences. The Preferences dialog box displays.

2. Click the Fonts & Colors tab. The Fonts & Colors panel displays.

3. To change the background color of a particular block (Unchanged, Collapsed, Edited, Inserted, Deleted, Changed, Conflict, Character Changed), click the corresponding Background button. The Choose Background Color dialog box displays.

4. Set your preferred color on the Swatches, HSB or RGB tabs. The Preview at the bottom of the dialog box displays the selected color for you.

5. Click OK to set the background color.

6. To change the foreground color of a particular block (Unchanged, Collapsed, Edited, Inserted, Deleted, Changed, Conflict) click the corresponding Foreground button. The Choose Foreground Color dialog box displays.

7. Set your preferred color on the Swatches, HSB, or RGB tabs. The Preview at the bottom of the dialog box displays the selected color for you.

8. Click OK to set the foreground color.

9. To set the display font for a particular block (Unchanged, Collapsed, Edited, Inserted, Deleted, Changed, Conflict), click the corresponding Font button. The Choose Font dialog box displays.

10. Select the Font, Style and Size from the corresponding list. The Sample at the bottom of the dialog box displays the selected font, style and size for you.

11. Click OK to set the font.

12. Click OK to save your font and color changes. Visual Difference / Visual Merge is updated with your changes.