Using Dark Theme hyperlinks are black (invisible)

Hi Caroline,
I’m loving the theme, though I’ve selected the ‘dark theme’ option and body text hyperlinks are black, rendering them invisible. The site I’m using it idrawzombies.com and you can see the ‘invisibility’ of body text links on https://idrawzombies.com/1000zombies/
and H2 text links on https://idrawzombies.com/zombies-for-sale/

I’m not sure whether I should play with a child theme css to attempt to fix this or hack the original CSS, or if I’ve somehow screwed up elsewhere….

thanks for your speedy response via twitter directing me to detail the issue here.
thanks in advance ??