We were inspired by a number of sources. We loved NProgress when it came out, but felt that mixins `Nprogress.set` calls into our code was cumbersome. After we started work on (what was originally codenamed MProgress (https://github.com/adamschwartz/mprogress) ;), Codedrops published their article. We were psyched because we thought we had an even bigger opportunity. So we curated and crafted the best themes from all over the web (Codedrops, included) and coupled them with the easiest-to-configure progress bar solution out there.