import jalview.schemes.NucleotideColourScheme;
import jalview.schemes.PIDColourScheme;
import jalview.schemes.PurinePyrimidineColourScheme;
+import jalview.schemes.RNAHelicesColourChooser;
import jalview.schemes.ResidueProperties;
import jalview.schemes.StrandColourScheme;
import jalview.schemes.TaylorColourScheme;