Hi, I am using Bio.graphics.BasicChromosome module. I want to draw a allotetraploid plant genome so that chromosomes coming from different ancestral species have different color coding. I know how to draw the backbone chromosomes but I don't quite get how to fill in colors. Also, for some chromosomes, I need some part of it being one color and the rest being another. Is there a way to do that in this module? What I want is similar to the diagram in the following paper, although I currently don't need those genetic map annotations. Thanks in advance!