The text color when I edit posts and pages has changed to white. White on a white background is difficult to work with. I believe this happened the last time I upgraded WordPress. It hasn't been an intolerable problem with only me editing the site, but now other people will be working on the site as well. I can't find where the text color for edit post and edit page is controlled.
I know I need to upgrade versions, but I'm afraid it will break the old theme that's running on my site and I don't have time right now to fix the theme if it does.