Joe Dolson

Adds a custom field to your post editing screens to add custom styles applied only on that page or post.
Attach custom styles to any page, post, or custom post type. Separate styles can be attached for print, screen, or mobile. You can also store your own library of frequently-used styles.
How to use the style library:
<ol>
<li>Add the styles you want on your settings page.</li>
<li>Navigate to an article which requires specific styles.</li>
<li>Select the library style from the drop down, leaving the style textarea blank.</li>
<li>Update or post the new document.</li>
</ol>
A newly-selected style from the style library will always overwrite any previous hand-written styles. If you wish to alter the library styles for a specific page, you can do this in the textarea after you’ve saved the page with the style library template.
By default, editing your saved stylesheets will have no impact on previously saved post-specific styles; set the option to pull styles from the library to change this.
Note: custom styles will not be included on archive pages; only on single post/Page views.
The use you’ll get out of this plugin depends on the flexibility of the theme you’re using and your own knowledge of CSS (Cascading Style Sheets).

WP Post Styling

Define custom styles for any post, page, or custom post type. Example: journal-style publications which want to create a unique design for articles.

Johan van der Wijk

Customize Admin is a powerful WordPress plugin that puts you in control of your website’s login page and dashboard layout. With its intuitive features, you can effortlessly tailor the look and feel of your WordPress login page and dashboard, creating a seamless and branded experience for your users.
Key Features:
Personalized Login Screen: Easily upload your custom image or logo to the login screen and define the link associated with the logo. Take your brand identity to the forefront and leave a lasting impression on your visitors from the very first interaction.
Streamlined HTML: Trim down and fine-tune your website’s HTML source code by selectively removing meta tags from the head section. Enjoy better control over your site’s code and optimize it for improved performance and SEO.
Dashboard Widget Management: Take charge of your dashboard widgets! Customize Admin enables you to disable selected widgets, allowing you to declutter and streamline your WordPress dashboard effortlessly.
Want to see the magic of Customize Admin in action? Check out the <a href="http://www.vanderwijk.com/wordpress/wordpress-customize-admin-plugin/" rel="nofollow ugc">plugin homepage</a> for more information and an enlightening screencast video that showcases the plugin’s capabilities.

Customize Admin

With this plugin you can use customize the appearance of the WordPress login page, dashboard and head section tags.

WP Post Styling vs Customize Admin