code: private Color getSectionColor(SectionHeader header) {
  		// color is based on section number
  		int nr = header.getNumber();
  		Color sectionColor = colorMap.get(SECTION_START);
  		// modify the color section number times
  		for (int i = 1; i < nr; i++) {
  			sectionColor = variate(sectionColor);
  		}
  		return sectionColor;
  	}
docs: Generate the color of the given section.
  
  @param header
  of the section
  @return color of the section