Merge branch 'screen-playground' into 'master'
created colours file and made it draw horizontal stripes
shortened comment
This repo is the result of my currently ongoing adventures with the baking pi operating system tutorial at: https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/index.html
My version of each lesson can be found in it's own branch. Master is just the most recent lesson I've completed probably.