I have a book called "Scrap Quilts fast and fun" by Oxmoor House (compiled and edited by Patricia Wilens). In is a quilt called "Madras Kaliedoscope" and it's one of the patterns I bought the book for and it's on my bucket list.
I found a quilt that someone is selling on E-Bay that gives you a general idea, except it looks like they used solids for the lights.
http://www.ebay.com.au/itm/Rainbow-M...-/230675237375
I've also seen Courthouse steps done in homespuns which I loved as well!!