This tutorial will show you some techniques that can help you create cool wallpapers, advertisements, or many other graphics. This tutorial will probably be quite long but I will try to be as detailed as I can be on certain aspects.
For the beginning we need to have installed the Adobe Photoshop CS4 Extended. Then create a new file (File>New) of 1280×1024 px and 72 dpi.
Next select the Rectangle Tool (U) to represent the background of the picture to be.
Choose next demonstrated parameters by making a mouse click on the layer on the layers’ panel.
Blending Options>Gradient Overlay