gtk-key-theme-ctrluftw from openSUSE:Leap:42.3 project
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Adicionar repositório e instalar manualmente
Para standard corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Leap:42.3/standard/openSUSE:Leap:42.3.repo zypper refresh zypper install gtk-key-theme-ctrluftw