Here in Linux 20231218.
Attempting to close my Application Preferences panel without adding an email address to the Designer Info tab, I got an “email address is incorrect” error. When I acknowledged the message, the preferences closed without applying the change I had made.
- The email box needs to accept a null entry.
- Failure to enter a “proper” email should not result in loss of changes.
- If it can’t save any preferences without a proper email addy, then the incorrect email error should fail to the email entry, not out.
While it’s nice that the email entry box letters red with an egregiously invalid email address, it’s not worth having an unusable preferences without entering an email. (Mine’s set to email@example.com ATM, which works as a pseudo-null. I’ll probably change it to my actual work-related email address eventually.)