To specify display colors for HTML tags and Perl scripts
On the main menu, click Tools > Global Options (or press ALT+F7).
Expand the Helper Applications node, expand the HTML Editor node, then click Colors. The HTML Editor Colors options appear.
Configure options as described below.
For each HTML tag set and for Perl script components, select a color from the drop-down lists.
To use the system default colors for the background (white) and text font (black), select the Use system settings check box.
To choose different colors for the background and text font, clear the Use system settings check box, then in the Background and Text font drop-down lists, specify the colors.
Click Apply if you are going to make changes to other pages; click OK to save changes and close the Global Options dialog box.