gtk-doc
GTK+ Documentation Generator
Gtkdoc is a set of Python scripts that generates API reference documentation in e.g DocBook, HTML or PDF format. It can extract documentation from source code comments in a manner similar to Java-doc. It is used to generate the documentation for GLib, Gtk+, and GNOME.
There is no official package available for openSUSE Leap 15.3Distributions
openSUSE Tumbleweed
openSUSE Leap 15.2
SUSE SLE-15-SP2
SUSE SLE-15-SP1
RedHat RHEL-7
CentOS CentOS-8
Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.