public synchronized PaletteColorTable getMutationColorScheme() {
if (mutationColorScheme == null) {
String colorTableString = get(MUTATION_COLOR_TABLE);
if (colorTableString != null) {
PaletteColorTable pallete = new PaletteColorTable();
pallete.restoreMapFromString(colorTableString);
mutationColorScheme = pallete;
} else {
mutationColorScheme = getLegacyMutationColorScheme();
}
}