What does the peak value of a7m3 mean?

The peak value of a7m3 indicates that the area with the highest contrast is displayed in the highlighted color. According to the public information about the query, the peak value of a7m3 refers to displaying the area with the highest contrast in the picture in a highlighted color, so that the photographer can easily determine where the focus is on the picture. The closer you get to the focus, the more obvious the color in the picture. These colors are called peaks. The peak value is only used in manual focus mode.