Set basic colors in Settings menu > Program settings > Colors (see Colors). These colors are applied to all highlighters with these rules:
You may fine-tune each highlighter attributes color and font styles in Settings menu > Highlighter Settings > Colors.
You may save a highlighter color scheme (see Syntax highlight). Doing so allow you to load the same scheme for any other highlighter, even custom ones. Select Settings menu > Highlighter settings > Colors, in the color scheme box enter new name or choose a prexisting name to overwrite and click the Save button. To load a color scheme, choose a prexisting name from combobox and click the Load button.