[APP][4.0+] Material Design Calculator topic

Hey ,

i want to show you my calculator app :)

i try to design it "material" :)
(but i don't get the statusbar colorfull like android 5.0.

I hope u enjoy it with the history of calculating :)

play.google.com/store/apps/details?id=com.jdpm.pmn.materialcalculator