The texture you select will be automatically rotated, cropped, and resized to fit into the photo you’re working on. You do, however, have control over two parameters that have a dramatic impact on the result you get. In the Texture Options section of the main window, you can change the blending mode and the opacity of the texture layer. The Opacity slider simply controls how strong the effect of the texture is. The Blending Mode list allows you to select a different blending mode for the texture layer. Different textures work better with certain blending modes, and a particular blending mode will produce different results with each texture / photo combination. If that sounds vague and confusing, it’s because there is somewhat of a black art to blending modes in general, but there’s no wrong way to do things, so feel free to experiment!