FuzzGuard

Want to style your Admin login pages for your clients in their corporate colors? Sick of the default wordpress wp-admin login page? Then this plugin maybe for you. It allows you to style the WordPress Admin Panel login page that comes default with every wordpress installation.
You can do the following:
<pre><code>* Upload and set your own logo for the Admin Panel login page
* Upload and set your own logo for the Admin Panel Menu (This replaces the DASHBOARD menu option)
* Set the background color of the Admin Panel login page
 * Set the background colour of the Username/Password boxes.
 * Set the background colour of the 'Log in' button
 * Set the background color of the Login Box.
* Set the color of the footer text.
* Set the colour of the text in the Login box.
* Set the colour of the 'Log in' text on the 'Log in' button 
* Set to have CSS rounded corners on your login box and the 'Log in' button
</code></pre>
Usually this require’s modification of CSS code to have the changes stick. This can lead to changes being overwritten on theme updates. This plugin is simple and allows you to easily change the options between your custom choices and the default ones that are set for your theme.

Style Admin

Want to style your Admin login pages for your clients in their corporate colors?  Sick of the default wordpress wp-admin login page?  Then this plugin …

noel

“Per-post styles for new age art direction.”
Pay your respects to print, get Art Direction.
This plugin allows you to have global archive and single page per-post styles and scripts.
Need custom CSS everywhere? Try <a href="https://wordpress.org/extend/plugins/safecss/" rel="ugc">WordPress.com Custom CSS</a>
Notes: 
 * 0.2.4 Brings fixes for issues with caching plugins, support for localization, and the ability to put style-POSTID.css files in your template directory. 
 * As of 0.2.1, global and single page custom code are now inserted in the ! Valid code for everyone! 
 * 0.2 adds role checking and fixes a bug where duplicate global css can occur.

Art Direction

"Per-post styles for new age art direction."

Style Admin vs Art Direction