This feature works in a similar way as a circle works, however, sometimes it is more suitable to use a rectangle shape to highlight an area. Circles cover more irrelevant area then rectangle shapes. You can make it a square or rectangle shape around the relevant area, for example, a building.
![](https://freesnippingtool.com/content-manager/wp-content/uploads/2020/12/image6-1024x481.jpg)