If you want to create some awesome effects in your images using gradient fill, consider using the Layers palette to change the fill layer's opacity or blending modes. It's quick, easy, and highly effective. To create a fill layer:
1. Choose Layer > New Fill Layer or click the black-and-white circle at the bottom of the Layers palette. This opens a menu from which you can choose the type of fill you want.
2. Choose Gradient from the menu to open the Gradient Fill dialog box.
3. Choose the gradient from the Gradient drop-down menu; then choose the style of gradient you want from the Style drop-down menu. Your choices include Linear, Radial, and more. Now choose the angle and the scale for the gradient with the remaining choices. Play around with these settings to get a sense of how they operate and to see how the sliders and drop-down menus can immediately affect your image.
4. Click OK. A fill-layer area appears on your Layers palette. If you want to change the position, the color, the scale, or the type of gradient (Pattern or Color) at any time, double-click the layer's icon on the Layers palette.