slight refactor of mix()
slight refactor of mix()

cemoulto/stylus,ThiagoGarciaAlves/stylus,modulexcite/stylus,stylus/stylus,silvaemota/stylus,tyv/stylus,isaacs/stylus,trixter5/stylus,jangarcia/stylus,johnnycopperstone/stylus,HossainKhademian/Stylus,Delapouite/stylus,meteor/stylus,Panya/stylus,angryrobot/stylus,PeterWangPo/stylus,SimenB/stylus,darwin/stylus,Zagorakiss/stylus,baotingfang/stylus,jonpacker/stylus,behzad88/stylus,Ricardh522/stylus,jameswomack/stylus,yetone/stylus,rstacruz/stylus,galenvagen/stylus,peterkinalex/stylus-1,a-x-/stylus