gtk4-encode-symbolic-svg [OPTION...] PATH WIDTHxHEIGHT
gtk4-encode-symbolic-svg converts symbolic svg icons into specially prepared png files. GTK can load and recolor these pngs, just like original svgs, but loading them is much faster.
PATH is the name of a symbolic svg file, WIDTHxHEIGHT are the desired dimensions for the generated png file.
To distinguish them from ordinary pngs, the generated files have the extension .symbolic.png.
- -o DIRECTORY, --output DIRECTORY
Write png files to DIRECTORY instead of the current working directory.