George Pattichis

Simple Custom Login Page is a simple but robust plugin to customise the login screen of your WordPress website. You can change the logo, the link and the colors (background, text, links) of the login page to match your brand’s identity.
Considering all the bloated plugins and resource intensive implementations floating around, this lightweight and efficient solution is a must-have for all WordPress users/developers. It is also regularly updated to be compatible with the latest versions of WordPress and PHP.
<h3>Features</h3>
<ul>
<li>You can change login logo image</li>
<li>You can change login logo link</li>
<li>You can change page background color</li>
<li>You can change form background color</li>
<li>You can change label text color</li>
<li>You can change links text color</li>
<li>Changes are also applied to the forgot-password form</li>
<li>Changes are also applied to the notification messages</li>
</ul>

Simple Custom Login Page

A simple, lightweight plugin to easily customise the admin login page with your brand's logo and colors.

Marius L. J.

Personalise your own website, no matter what theme and what customization options are added by the themes creator.
When active, the plugin will add a new section to your Customize screen entitled Simple Customize, containing input fields for various elements needed to display a new customize option.
You can easily find what you wish to customize by using the Find element button, which will let you point and click in the preview window to find what you are looking for. 
Although no prior knowledge of CSS or HTML is required to use the plugin, basic understanding of CSS will definitely help you make the most out of this plugin, an in turn your own site.
Once you are happy with everything in the options, use the Add element button to have your customize option implemented. 
The CSS will be queued up in such a manner that it will try to be the dominant rule, so assuming the theme doesn’t have any <a href="http://stackoverflow.com/questions/3706819/what-are-the-implications-of-using-important-in-css" rel="nofollow ugc">!important</a> flags on its styling, your own styling will appear.
You are also able to implement 3rd party fonts using the plugins own options page, where you may add manual styling alternatives, as well as create categories for grouping your own styles.
All customizations are theme-specific, this means if you ever change your theme, you will get a clean slate to work off when customizing it. 
Of course, should you ever revert back to your old theme, your previous custom styling will still be there.
Note: You should always be cautious of modifying other peoples work, respect the time and dedication put forth by your themes author.

Simple Custom Login Page vs Simple customize