As the translations are mostly done by the community, errors will likely occur. I only handle the Dutch language so I can't do much about it. But it might be for the best if it is reported somewhere for the translators to fix them
@dcook The color you want to change is not property of the categories, but rather the property of the theme. Black is the theme color for section categories (non-clickable link) and blue is the theme color for non-section/normal categories (clickable link).
That's why there is no option to customize it on categories management.