Gimp is image editing software that contains various tools. It displays the main toolbox with selection, cropping, and erasing tools. Below the toolbox are options for the selected tool. The image window shows the work and layers panel shows the image's layer structure. Below the layers panel are brush, pattern, and gradient options. To blend images in Gimp, select two images and add a layer mask to one with an initialized white mask. Use the gradient tool to make a gradient from right to left across the image. Merge the layers to combine them. You can then copy and paste images between files and move them as desired before saving. To change colors, outline the desired area, remove saturation, create a new color layer