WordPress 4.5 broke the plugin

WordPress 4.5 broke the plugin at least at “Login Form Background Color.”

When I inspected it and disabled the background line with which 4.5 is overriding the plugin, the the color set in the plugin’s settings showed up just fine.

.login form {
[...]
    background: #fff;

https://wordpress.org/plugins/erident-custom-login-and-dashboard/