@kekemui @GIMP Thank you, that worked a treat! I like a lot about #GIMP3, but the removal of "Recently Used" in the save/open dialog and that neither G'Mic nor Resynthesizer appear to work in Gimp3 yet, means I need to keep 2.10 for now.
I have G3 as an AppImage so I can switch to it if I need to.
Thanks for this tip!