The kde-misc category contains various miscellaneous KDE packages.
In general, packages here are extensions of the Plasma desktop environment
(ioslaves, command center modules, plasmoids, ...), while KDE applications
that do not rely on the desktop environment better suit other categories.
There are no pull requests
You think something is missing here? Start with filling a new pull requests.
If you also like to help the Gentoo project, you can consider sending a Pull Request via GitHub. Before doing so, you might want to take a look at the wiki page.
Packages