I installed clamtk from the obs:security repo and tried to start it. It did not
:-\

On the command line, I got the error:
---snip---
# clamtk
Can't locate JSON.pm in @INC (you may need to install the JSON module) (@INC
contains: /usr/lib /usr/lib/perl5/site_perl/5.18.2/x86_64-linux-thread-multi
/usr/lib/perl5/site_perl/5.18.2
/usr/lib/perl5/vendor_perl/5.18.2/x86_64-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.18.2
/usr/lib/perl5/5.18.2/x86_64-linux-thread-multi /usr/lib/perl5/5.18.2
/usr/lib/perl5/vendor_perl/5.18.1/x86_64-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.18.1 /usr/lib/perl5/site_perl .) at
/usr/lib/ClamTk/Analysis.pm line 27.
BEGIN failed--compilation aborted at /usr/lib/ClamTk/Analysis.pm line 27.
Compilation failed in require at /usr/bin/clamtk line 23.
BEGIN failed--compilation aborted at /usr/bin/clamtk line 23.
---pins---

The problem could be solved by installing the perl-JSON package (which brought
along perl-JSON-XS perl-Types-Serialiser perl-common-sense) on my host. I
suggest you add this package to the dependencies. The installation already
brought several new packages to my host...

---snip---
# zypper in clamtk-kde
Loading repository data...
Reading installed packages...
Resolving package dependencies...

The following 14 NEW packages are going to be installed:
  clamtk clamtk-kde gnome-icon-theme gnome-icon-theme-extras
gnome-icon-theme-symbolic perl-Cairo perl-ExtUtils-Depends
perl-ExtUtils-PkgConfig perl-Glib perl-Gtk2 perl-Pango perl-Text-CSV zenity
zenity-lang

The following recommended package was automatically selected:
  zenity-lang

14 new packages to install.
---pins---

Regards,
Werner