private void updatePalettes() {
		palette.setBase(PALETTE_COLOR_LOW, PALETTE_COLOR_HIGH);
		addPaletteKnots();
		service.paletteChanged();
	}
Helper class for the {@link EntropyOverviewColorService} to manage the options and create
the color Palette for that service.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/overview/entropy/EntropyOverviewOptionsManager.java