"Click on the Snippy icon – mouse cursor changes to a pen – mark an area of the screen – the marked area is now in your clipboard.
If you want to select a rectangular area, just hold down the Shift key while dragging. You can configure some things like the color of the border and so on by right-clicking on the Snippy icon in the taskbar. One of the things you can do here is to set a keyboard hotkey for activating the capture mode."
