Is there an easy way to resize screenshot in macOS markup editor? When you take a screenshot by pressing Command + Shift + 4, a preview pops up on bottom right. If you click it a program opens up, which I believe is called markup editor. Now in this program you can do most things. However, I've not been able to find a way to resize the screenshot.

How do I find an easy way to resize the screenshot? I am running macOS Catalina.
The markup editor doesn't have a control to resize screenshot. Instead you can skip clicking on the screenshot and let it get saved (which is by default on Desktop). Once it is saved, you can open it in Preview.app and use the Adjust Size... command under the Tools menu to resize it.