Use layer styles to color the different elements. As you make the styles, save them to the styles palette.
Adding Details If youâ€™re working with a small scale icon, it doesnâ€™t mean that it should be simple and dull. Adding decorative elements like patterns and highlights will make the design stand out without looking over complicated. For this design I've added some very subtle highlights and patterns, plus two cute looking plants to give the house a more homely feel and to add some more color.
Saving styles, colors and even elements to use in further designs or projects is one of the most important things to remember. As an icon designer, the time you will spend on creating designs can be dramatically reduced with a good library of assets.