Tags: patch By default zone chooses a random program, but it seems to me that it should be OK to allow choosing a specific effect. In GNU Emacs 29.0.50 (build 5, x86_64-pc-linux-gnu, GTK+ Version 3.24.34, cairo version 1.17.6) of 2022-10-13 built on rhea Repository revision: 0b170c6caeeb669df3cf97c54c43da9cf77e6b42 Repository branch: master System Description: Fedora Linux 36 (Workstation Edition) Configured using: 'configure --with-pgtk --with-imagemagick'