Samuel Wood (Otto)

Replace the smilies with the original versions from previous versions of WordPress.
Added bonus: Disables all “emoji” functionality in WordPress 4.2 and above.

Classic Smilies

I have been using this plugin and I proudly recommend to everyone.
PRO
- It improve performance by removing inline JS and reducing HTTP requests.
Cons
- Smiley images shouldn't be look dull. It could be appear clear like Original.

Thanks & Regards,
Gulshan

Very goood plugin, some improvement needed

Replace the smilies with the original versions from previous versions of WordPress.

mch0lic

Recently upgraded to WordPress 3.8+ and not yet ready for the visual change? WP Admin Classic plugin simply disables new admin theme and reenables the prior 3.8 looks to your admin panel. Please, note that there is still some unsolved issues (see “Issue list), so if you have ideas how to solve it just shout!
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Issue list:
<ol>
<li>
RTL Languages are not yet supported!!!
</li>
<li>
Post edit form turns blue (as a result for fixing http://1?ver=3.8 issue)
</li>
<li>
Admin bar is not displayed properly on front-end with standard Twenty Thirteen, Twenty Fourteen (updated themes).
</li>
</ol>
Notes:
<ol>
<li>Dashboard widgets are now 100% wide. CSS fix by Robert Heller (Single column only!).</li>
</ol>
Please, report any other CSS/JS issues and suggestions how to fix them <a href="https://wordpress.org/support/plugin/wp-admin-classic" rel="ugc">here</a> or <a href="http://mindomobile.com/contact-us/" rel="nofollow ugc">here</a>. Your help much appreatiated.
ENJOY!

wp-admin classic

Classic WordPress Admin theme (prior 3.8 style).

Classic Smilies vs wp-admin classic