- Double click
downscale-retina-screenshot-service.workflow - Install it as prompt
- Open with Automator as prompt
- Change
SS_PATHif you want change the path where screenshots to save - Click the Run button to test
Assign a keyboard shortcut in System Preferences. If you assign Cmd+Shift+4 to instead the Native one, then everything looks just like native.
For more detail please check my article: Downscale Screenshot at high resolution on retina macbook pro or retina 5K iMac