If -DWITH_OXYGEN_ICONS is disabled, Quassel will not install its
own Oxygen icons, and thus those would be missing if Oxygen were
chosen as a fallback.
Ensure that the fallback isn't offered in this case even if there
happens to be a (runtime-detected) system installation of Oxygen.
static const std::vector<std::pair<QString, QString>> supported {
{ "breeze", tr("Breeze") },
{ "breeze-dark", tr("Breeze Dark") },
+#ifdef WITH_OYGEN_ICONS
{ "oxygen", tr("Oxygen") }
+#endif
};
std::vector<std::pair<QString, QString>> result;