Inspiration struck me at work when I was marking a set of used tires with the name of its owner. Different tire treads force one to write in peculiar ways in order for the text to be legible when searching our tire storage. The essence of "Backbone" was born due to this limitation. Created on the philosophy of being reliant on a far-left line (the proverbial "backbone") and revolving around it as much as possible. Other important themes and limitations are 45 & 90 degree angles, brutalism, and the numbers 7 & 13. However, aesthetics take priority, so you may very well see some broken rules. Intended as a display font, not all elements are fully legible and some characters don't play nice with each other. What else do you expect from a bunch of sharp points?