In Apparence Preference, is select one of murrine theme, a warning appears because murrine gtk engine is missing. Reproducible: Always Steps to Reproduce: 1. emerge x11-themes/murrine-themes without have installed gtk-engines-murrine 2. change apparence and select a murrine theme 3.warning will appeaes Expected Results: murrine-themes install as dependence, gtk-engine-murrine
Confirm.
The theme isn't supposed to be installed on it's own. It's pulled in by gtk-engines-murrine. Making it pull in gtk-engines-murrine will cause a circular dep.