The potential for extended reality devices in medicine has recently grown. In order to approve these devices for medical use, they must be evaluated on many characteristics to ensure safety and effectiveness. One of the most important evaluations is the quality of the device's display, known as image quality, especially for medical applications (Zhao et al., 2023). The image quality evaluation of virtual and augmented reality devices requires the creation of a variety of different test patterns. These test patterns consist of many different shapes that must frequently change their location, size, or color in order to adapt to the many headsets in the market (Beams et al., 2020) (Zhao et al., 2023. The Pattern Creation Tool allows for the creation, editing, and sharing of patterns that work in a mixed reality environment. The Pattern Creation Tool includes multiple default patterns that are commonly used in image quality evaluation. These include a pattern for finding the center of the device's display, a pattern to measure geometric distortion, a pattern to measure Michelson contrast, and a pattern to measure line spread. These patterns can make simple testing easier as well as serve as a template for other patterns.