How do you change the Login Window Theme for Linux Mint 19.3?

[LinuxUser578]

I could've sworn that I could do that on a older version of Mint, but I don't remember which one. Is there a way to change the theme, or make a custom one?

 

[Vrai]

Perhaps here:
System Settings > scroll to the bottom > Login Window > click that > enter password > enter >
see if that is what you are looking for.