Debug Shell =========== CellProfiler contains a debug shell that can be activated for advanced troubleshooting. To access the shell on Windows, open the 'About' dialog in the 'Help' menu. Then hold shift while closing the About popup with the 'OK' button. To access the shell on Mac, hold down shift while clicking 'About CellProfiler' in the 'Help' menu. For more information, see the `pull request`_ for this feature. .. _pull request: https://github.com/CellProfiler/CellProfiler/pull/4458