<hgroup>
<boolean id="smooth" _label="Anti-aliased Lines" arg-unset="-no-smooth"/>
- <boolean id="fade" _label="Thick Lines" arg-unset="-no-thick"/>
+ <boolean id="thick" _label="Thick Lines" arg-unset="-no-thick"/>
<boolean id="fade" _label="Fade Out" arg-unset="-no-fade"/>
</hgroup>