Comment by susam

Here is a key sequence I use very often. It takes a screenshot of a chosen window without the window's shadow.

- First, type command + shift + 4 (the mouse pointer turns into crosshair).

- Then type the space bar (the crosshair turns into a camera icon).

- Hover the mouse pointer (a camera icon now), to highlight the chosen window.

- Finally, hold the option key and click.

This sounds like a lot of steps but it becomes muscle memory pretty quickly.