This is par 2 of making icons Tutorial. So let's start by creating a mere document. This time it will be square.



Use custom shape tool to create basic form.







Make a copy of the layer and transform it to be a little bit smaller than the original layer.



Use Layer styles on Upper layer.







And here is our result for this moment.

Steps:
Using color range tool select the BLUE color tone.



Further IT.



Create anew later (when the selection is still on).