How can I dye the armor?

I want to dye my leather armor in Minecraft pocket edition, but I don't know how. Can someone help me?

In a craft table and then make a circle around with the paint and the armor part in the middle

You have to fill a kettle with water then click on it with the dye, then the water will color and then you have to click on it with the armor.

Works only with leather armor

Oh yes, I completely forgot, I'm still in the old days

You can also mix some colors ^^

You just have to do it in a workbench. It is the easiest solution that I tried myself and it worked.