In January 2012, expanding on the new iconography style started by Creative Lab, we began creating this solid, yet flexible, set of guidelines that have been helping Google’s designers and vendors to produce high quality work that helps strengthen Google’s identity.
This is the continuation of the visual assets guidelines of Google, very simple and easy to grab design guidelines that can help in designing icons, fun illustrations, and other graphic design elements of any brand trying to be in-line with new flat design tendencies.