Error screen uses dark theme in light themed terminal

[seasonedfish]

I have a light themed terminal, and zenwritten automatically uses the light theme, as expected.

However, whenever there's an error upon starting nvim, the error screen uses the dark theme:

This can be worked around by adding set background=lightto my init.vim, but I'd prefer not setting that (so that I don't need to update it every time I change my terminal theme).