To complete this tutorial it will be good to have the following sets :

1. 30.000 Photoshop layer styles

2. 27.000 Photoshop gradients

I will show you how to create the layer styles I will use, and I will give you all the color codes you need, but it will be good if you will have more options to test different colors.

For start you can open a new document with the following size: 960×900 pixels.

Select the background layer and press CTRL+J. This shortcut will duplicate the background layer. Select this second layer and add the following layer style.

via Design a colorful theme for wordpress | Grafpedia.