For example i se people who have sigs and there brushes they use for the background are all blended in with diffrent colors and makes a real neat touch , infact most of the people on this site have sigs like that , this is the most i can do But you see my background is only like 1 color with diff contrasts and what not how do iget it to be like this : see how that background is like
well make a new background, then do layer>new adjustment layer> colorize and pick a color you want, the click the eye thing inside the adjustment layer so you cant see that color anymore, then do 3 more colors, or how-ever many colors you want, then click the top layer, make sure you see it (the eye is in the square next to the layer name) and do filter>render>clouds, do that same to all layers and it should be multi-colored