On Fri, 29 Jul 2022 15:18:48 -0400 Little Girl <littlergirl at gmail.com> wrote: > It works reliably and repeatably for me in Claws 4.0.0 and Clawsker > 1.3.5 inside of Kubuntu 22.04 LTS. I can turn the colored stripes on > and off and change the degree of their contrast. Yes, you're right. It is deprecated in GTK3 but not yet removed. with regards Paul