This tutorial walks you through steps in creating profressional background and wallpapers. Create a new file with
1600x1200 px and
72 dpi.
Start representing the primary texture’s cliché.
Select the next tool

and apply it on a new layer: 4x4 px to create first elements, like the next ones. The color is
4D7FA2.

Save it!

Set the parameters from the table:
Blending Options-Gradient Overlay
Gradient’s parameters:
Blending Options-Pattern Overlay