Well, I can live without lighting anyway (as can these dwarves apparently). Really enjoying the game generally, it feels like a gem, but the sound design can be very subpar.
With the soundtrack, you could be rocking along to a good tune and then suddenly the next track plays with 15 seconds of high pitch sharp tinnitus sound digging into your eardrum. The sound design is the same. It is hard to object to hearing birdsong 10 levels below the surface, even though it makes little sense, but then you can hear this PCKAWWWW bird sound at random intervals.