> Style tiles help establish a common visual language before getting started on the mockups. “Can we see what this would look like in purple” will no longer be such a painful question. Style tiles consist of fonts, colors, patterns and other interface elements. Now, when your team needs to add a new screen with various elements, it will be easy to borrow the asset from the style tile that you previously agree upon.

This sounds a lot like using bootstrap, except you have your own custom version. This would help improve the consistency of the design and make it vastly easier to iterate.

Styletiles, bootstrap and other basic web widgeting toolkits will transform the way web apps are built, saving tons of time and producing better results.