Nick Ciske

Makes media library thumbnails match the WordPress thumbnail size or allows you to choose a new size in Settings: Media (or hard code a custom size named ‘mte_thumbnail’).
Also replaces the default “Crystal” file type icons with smoothly scaling SVG icons that better match the WordPress 3.8+ design.

Media Library Thumbnail Enhancer

Enhances media library thumbnails by making them larger and replacing the bundled icons with scalable SVG versions.

David Mosterd

Tobias Schutter

Codepress

Stefan van den Dungen Gronovius

Adds shortcodes to easily create columns in your posts or pages.
Sometimes you just need to divide your page into different columns. With this plugin you just select a column shortcode and it will add the column to the page. You can also change the padding of each individual column from the UI.
There are 10 different column widths available from which you can make all combinations:
<ul>
<li>full width (1/1)</li>
<li>half (1/2)</li>
<li>one third (1/3)</li>
<li>two third (2/3)</li>
<li>one fourth (1/4)</li>
<li>three fourth (3/4)</li>
<li>one fifth (1/5)</li>
<li>two fifth (2/5)</li>
<li>three fifth (3/5)</li>
<li>four fifth (4/5)</li>
<li>one sixth (1/6)</li>
<li>five sixth (5/6)</li>
</ul>
A preset stylesheet is included, which you can also overwrite to you liking in your theme’s stylesheet.
Related Links:
<ul>
<li>http://www.codepresshq.com/</li>
</ul>

Column Shortcodes

Adds shortcodes to easily create columns in your posts or pages.

Media Library Thumbnail Enhancer vs Column Shortcodes