You can change the color for call stack highlighting in
the preferences page.
Procedure
Open the Preferences window.
Go to the section Run/Debug > Compiled Debug > Visual Debugging.
Click the Color for call stack highlighting color
selection control.
Select a different color and click OK.
If you want to restore the original highlighting color,
return to the Run/Debug > Compiled
Debug > Visual Debugging preferences
page, click Restore Defaults and then click OK.