A pattern overlay can be used over your text to create a whole new look to your text and have a pattern actually go over your original color while keeping the highlights and the shadows the same.

So to do so, go ahead and double click on the text layer that you want to modify by adding the pattern overlay and go ahead and bring down the layer style dialog box so you can see the text that you’re working on. You also have a preview over to the side. Let’s go ahead and click on pattern overlay. And right away, you want to go ahead and decide on your pattern and you’ve got a couple of different choices here, so go ahead and let’s pick this one. And your blend mode, and that’s going to be how it is blended with your original text. Go ahead and make a choice, and some of them are going to be dramatic and some of them are going to be more subtle. You can also change the opacity if you want to make it blend a little bit more with what you had originally. You could get some really neat looks to text this way. And you can increase or decrease the scale which it just kind of moves the pattern around, you get a closer look at the pattern and then a wider view of the pattern moving it so you can get some really cool effects by just adding a simple pattern overlay to your text that you already have in your Photoshop document.