smg (Screen Magnifying Glass) shows the area around the mouse cursor in a small window with magnification factor of 2, 3, 4, 6 or 8.
The program window can be resized from 100x100 to 600x480 px. It can be shown or hidden by a single click on the tray icon.
Other features include hair cross, adjustable opacity, adjustable scan rate to reduce flicker, and mouse coordinated shown in the title.