While, as noted in DM-16457, Firefly enforces minimum and maximum value limits on the image stretch panel, it does not appear to enforce a restriction that the maximum value be greater than the minimum value. This should be more useful than the existing range limits, as a reversed range may well not produce well-defined behavior for all stretches.

This is not a high priority, but should be added to the FireflyCCB-D design discussion list.

IPAC Firefly ticket https://jira.ipac.caltech.edu/browse/FIREFLY-140