Custom Login Page
Umbraco 7.4.3
This is a tweak for the login page, changing the visual of the layout. It adds a custom css and javascript injections into the Login page.
It also adds a "loading" after clicking login, and it changes the background image for the screen.
To customize it, you should open ~/App_Plugins/Custom.Login.Page/css/style.css and change the style to fit your needs.
Umbraco 7.6+
The login background can be changed via, so this plugin is not necessary
~/config/UmbracoSettings.config
<content><loginBackgroundImage>/Assets/images/logo.png</loginBackgroundImage></content>