Output text is unreadable on dark themes

[osuritz]

I use a (very common) dark theme for my terminal. "Standard" Nx output works fine even for text that's lighter.
However, the output of nx-remotecache-custom isn't readable except for the name of the cache store or when there's a warning. I have to select the text for it to show.

As you can see, the lighter text from Nx output shows just fine.

See below.