cd /var/hda/web-apps/phpmyadmin/html
vi config.inc.php
* Add this text before the last line to of the end file and change the name to the theme of your choice (i.e. paradice''Cleanstrap'', Artic Ocean''blueorange'', Darkblue/orange''Original'')
$cfg['ThemeDefault'] = 'metro';
* Save the file and clear the web browser cache.