As a font developer, I spend a good chunk of each day coding in a text editor and reading output messages from a terminal window, so I can appreciate the importance of a good monospaced font. Of course there is no technical limitation to using monospaced fonts when coding, but it is a very useful convention. When the Brackets team reached out to us on the Adobe type team, asking if we could develop a coding font for their open source application, we thought it made sense to adapt Source Sans, which I was working on at the time. Personally, I felt that I could use this opportunity to create a coding font that I would want to use myself. Given the existing family name, I couldn’t resist the opportunity to name the monospaced variant designed for coding applications Source Code. (via Announcing Source Code Pro « Typblography)