Hi Tom,
I'm working through your wonderful PDF book and I got to the section on Customizing the Circos layout, and I cannot find the referenced FederalContributions.txt file (page 30) in the folders here on Github or from packt's download. I see the other files, but I'm not sure if the chromosome order posted in "How to do it" will also work on other available files such as FederalIndividualContributions.txt?
Also, it's not 100% clear in the text, but would I just use the same steps outlined in the diagram on page 24 to complete this section, but I just update the chromosome order?