This is an update to a question I had a couple of years ago https://cygwin.com/pipermail/cygwin/2021-April/248367.html
Windows 11 now has an "accent color" option under Settings/Personalization/Colors that adds a thin (1px?) border around all windows, in a user-selectable color. This definitively eliminates the problem seen with overlapping mintty windows that have a dark grey or black background (where the shadow isn't visible). Just FYI -- Jim Garrison j...@acm.org -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple