On embroidery machines, in addition to cash embroidery, we can also work on applications, which is a combination of a variety of colored cloths and most often processing the very edge of the cloth with a thick zigzag stitch. In addition to processing the edge of the application, small embroidery details can be added to complete the application.
Let's say if it's a fish, then we will mark the eye, mouth, gills with embroidery. The application is a folk saying "patch", it can be placed as a decorative accessory or "mask" of a torn piece of our dear piece of clothing. There is no rule for setting up applications, whatever the machine can sew can...