[NTG-context] Controlling linespacing in a TOC

Hello all! This is probably a stupid question, but how do I control the linespacing in a table of contents? I found that space can be added with e.g. \setuplist[chapter][before={\blank[4*big]}] but how do I make the linespacing smaller than default? I've got \setupwhitespace[medium] does that affect the linespacing in a table of contents? Are there any other settings besides \setuplist and \setupwhitespace that affect the TOC spacing? I've got a fairly complicated file (or, rather, a group of files), so I'm wondering if there's something somewhere else that makes my TOC so airily laid out. (It looks nice, but I'd rather squish it into fewer pages...) Thanks, Mari