_NPCScan.Overlay is an addition to _NPCScan that adds map overlays for rare mob patrols. When you search for a rare in _NPCScan, <dfn>_NPCScan.Overlay</dfn> will show where it patrols until you find it. It works similarly to <cite>keithgabryelski's Rare Spawn Overlay</cite>, but supports the minimap and has a much smaller download size, along with a few new features.
Special thanks to <cite>Rare Spawn Overlay</cite>'s patrol paths and <cite>Routes</cite>' minimap drawing code for inspiration!
<font color="red">Note: _NPCScan.Overlay can integrate with _NPCScan if you have installed it, but make sure to keep both up to date if you do use both!</font>
