As nice scroll is a jquery plugin for WordPress site. This plugin will create a nice scrollbar for your site.
Eazy Login Logo changes the default logo on the login screen.
Simple widget that displays both Register and Login links then once logged in links switches to Logout link with a friendly welcome and username.
Colorlib Login Customizer by Colorlib is a plugin that helps you personalize your login form directly from the Customizer.
TID Custom Login Page plugin will help to customize your WordPress Login page. You may update Image and color.
By using the Login Page Styler plugin, you can simply change the default WordPress login page styles
A WordPress plugin so that you change wp-admin layout also you can change dynamically all the labels of login/forgot-password form by install this plugin.
WordPress form builder for creating front-end user registration form, custom login form and password reset forms easily.
A simple, lightweight Plugin to Customize Your WordPress Login Screen Amazingly.
AS login you can fully customize wordpress login page.
SUA – Secure User Account WordPress Login is a plugin that will allow you to secure your account
Allows you to Change your WordPress WebSite Login URL Slug.
Custom Login Customizer plugin allows you to easily customize your wordpress site login page from your Customizer Panel!
Adds an image captcha and honeypot to the WordPress login page
Admin Login Mystery is developed for gives a user extra options to customize the wp-admin or wp-login or website admin page customize.
Your Login Form anywhere within WordPress.