Wordpress/src/wp-admin/about.php

<?php
/**
 * About This Version administration panel.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** WordPress Administration Bootstrap */
require_once( dirname( __FILE__ ) . '/admin.php' );

$title = __( 'About' );

list( $display_version ) = explode( '-', $wp_version );

wp_enqueue_script( 'about' );

include( ABSPATH . 'wp-admin/admin-header.php' );
?>
<div class="wrap about-wrap">

<h1><?php printf( __( 'Welcome to WordPress %s' ), $display_version ); ?></h1>

<div class="about-text"><?php printf( __( 'Thank you for updating to WordPress 3.8! We&rsquo;re happy to bring you the most beautiful WordPress yet.' ), $display_version ); ?></div>

<div class="wp-badge"><?php printf( __( 'Version %s' ), $display_version ); ?></div>

<h2 class="nav-tab-wrapper">
	<a href="about.php" class="nav-tab nav-tab-active">
		<?php _e( 'What&#8217;s New' ); ?>
	</a><a href="credits.php" class="nav-tab">
		<?php _e( 'Credits' ); ?>
	</a><a href="freedoms.php" class="nav-tab">
		<?php _e( 'Freedoms' ); ?>
	</a>
</h2>

<div class="changelog">
	<h2><?php _e( 'Introducing a new, modern admin design' ); ?></h2>
	<img src="<?php echo admin_url( 'images/about-overview.png' ); ?>" />

	<div class="feature-section col three-col about-updates">
		<div class="col-1">
			<p style="margin-top: 20px; background-color: grey; padding: 1em; color: white; min-height: 150px;">Image</p>
			<h3><?php _e( 'Modern aesthetics' ); ?></h3>
			<p><?php _e( 'Goodbye decoration, hello simplicity. We removed extraneous details, focusing on a cleaner, more streamlined admin design.' ); ?></p>
		</div>
		<div class="col-2">
			<p style="margin-top: 20px; background-color: grey; padding: 1em; color: white; min-height: 150px;">Image</p>
			<h3><?php _e( 'Improved typography' ); ?></h3>
			<p><?php _e( 'You might notice the type is a little bit bigger. We improved the typography, crafting a better reading experience.' ); ?></p>
		</div>
		<div class="col-3 last-feature">
			<p style="margin-top: 20px; background-color: grey; padding: 1em; color: white; min-height: 150px;">Image</p>
			<h3><?php _e( 'Higher contrast' ); ?></h3>
			<p><?php _e( 'With bigger typography and both high and low contrast color schemes, our new admin design is great for users of all ages.' ); ?></p>
		</div>
	</div>
</div>

<hr />

<!-- Image example -->
<!-- <img alt="" src="<?php echo admin_url( 'images/about-search-2x.png' ); ?>" /> --> 

<div class="changelog">
	<div class="feature-section col two-col">
		<div>
			<h3><?php _e( 'Take WordPress with you anywhere with our responsive design' ); ?></h3>
			<p><?php _e( 'The WordPress admin is now completely responsive: you can work on your website easily from your smartphone or tablet. The full power of WordPress is at your fingertips, even when you’re on the go.' ); ?></p>
			<h4><?php _e( 'Naturally HiDPI' ); ?></h4>
			<p><?php _e( 'No more blurry edges — with the inclusion of vector icons and graphics, the admin is now entirely HiDPI, so you get the best viewing experience no matter what kind of computer or mobile device you use.' ); ?></p>
		</div>
		<div class="last-feature">
			<img src="<?php echo admin_url( 'images/about-colors.png' ); ?>" />
		</div>
	</div>
</div>

<hr />

<div class="changelog about-colors">
	<div class="feature-section col one-col">
		<div>
			<h3>Now with more color</h3>
			<p><?php _e( 'Your admin is not longer monochromatic — we&rsquo;ve brought some more color to keep it looking fresh. You now have the option of four different default color schemes.' ); ?></p>
			<p><?php _e( 'Try them out below:' ); ?></p>
			<img src="https://i.cloudup.com/NBlGusRk0H.png" style="border: 2px solid red; max-width: 99%; margin: 0;" />
			<p><?php _e( 'You can change your color scheme at any time from your profile page.' ); ?></p>
		</div>
	</div>
</div>

<hr />

<div class="changelog">
	<div class="feature-section col two-col">
		<div>
			<h3><?php _e( 'A new theme experience' ); ?></h3>
			<p><?php _e( 'A sleeker, faster, and more visual organization of your themes that is responsive.' ); ?></p>
			<h4><?php _e( 'Browse better' ); ?></h4>
			<p><?php _e( 'Enjoy a focused experience with theme screenshots at the center. Quickly search through your themes or add new ones.' ); ?></p>
			<h4><?php _e( 'Dive into the details' ); ?></h4>
			<p><?php _e( 'Expand a theme to see more information and preview it. Use the arrow navigation to quickly swift through your themes.' ); ?></p>
			<h4><?php _e( 'Easier updates' ); ?></h4>
			<p><?php _e( 'Identify immediately when a theme update is available.' ); ?></p>				
		</div>
		<div class="last-feature">
			<img src="<?php echo admin_url( 'images/about-themes.png' ); ?>" />
		</div>
	</div>
</div>

<hr />

<div class="changelog">
	<h2><?php _e( 'Sleek New Magazine Theme' ); ?></h2>
	<img src="<?php echo admin_url( 'images/about-twentyfourteen.png' ); ?>" />

	<div class="feature-section col one-col">
		<div>
			<h3><?php _e( 'Our new default theme lets you create a responsive magazine website with an elegant, modern design.' ); ?></h3>
			<p><?php _e( 'Feature your favorite homepage content in either a grid or a slider. Use the three widget areas to customize your website, and change your content&rsquo;s layout with a full width page template and a contributor page to show of your authors.' ); ?></p>
			<p><?php _e( 'Creating a magazine website with WordPress has never been easier.' ); ?></p>
		</div>
	</div>
</div>

<hr />

<div class="changelog">
	<h3><?php _e( 'Under the Hood' ); ?></h3>

	<div class="feature-section col three-col">
		<div>
			<h4><?php _e( 'Meta query fixes' ); ?></h4>
			<p><?php _e( 'Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Vestibulum id ligula porta felis.' ); ?></p>
		</div>
		<div>
			<h4><?php _e( 'Automated RTL styles' ); ?></h4>
			<p><?php _e( 'Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Vestibulum id ligula porta felis.' ); ?></p>
		</div>
		<div class="last-feature">
			<h4><?php _e( 'Improved customizer' ); ?></h4>
			<p><?php _e( 'Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Vestibulum id ligula porta felis.' ); ?></p>
		</div>
</div>

<div class="return-to-dashboard">
	<?php if ( current_user_can( 'update_core' ) && isset( $_GET['updated'] ) ) : ?>
	<a href="<?php echo esc_url( self_admin_url( 'update-core.php' ) ); ?>"><?php
		is_multisite() ? _e( 'Return to Updates' ) : _e( 'Return to Dashboard &rarr; Updates' );
	?></a> |
	<?php endif; ?>
	<a href="<?php echo esc_url( self_admin_url() ); ?>"><?php
		is_blog_admin() ? _e( 'Go to Dashboard &rarr; Home' ) : _e( 'Go to Dashboard' ); ?></a>
</div>

</div>
<?php

include( ABSPATH . 'wp-admin/admin-footer.php' );

// These are strings we may use to describe maintenance/security releases, where we aim for no new strings.
return;

_n_noop( 'Maintenance Release', 'Maintenance Releases' );
_n_noop( 'Security Release', 'Security Releases' );
_n_noop( 'Maintenance and Security Release', 'Maintenance and Security Releases' );

/* translators: 1: WordPress version number. */
_n_noop( '<strong>Version %1$s</strong> addressed a security issue.',
         '<strong>Version %1$s</strong> addressed some security issues.' );

/* translators: 1: WordPress version number, 2: plural number of bugs. */
_n_noop( '<strong>Version %1$s</strong> addressed %2$s bug.',
         '<strong>Version %1$s</strong> addressed %2$s bugs.' );

/* translators: 1: WordPress version number, 2: plural number of bugs. Singular security issue. */
_n_noop( '<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bug.',
         '<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bugs.' );

/* translators: 1: WordPress version number, 2: plural number of bugs. More than one security issue. */
_n_noop( '<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bug.',
         '<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bugs.' );

__( 'For more information, see <a href="%s">the release notes</a>.' );