My webhost has stated that they will only use the installed themes that are shipped with phpMyAdmin. On a shared server, they will not install any other themes. I've sought to move to a different webhost and those that meet all of my other needs for a webshost have the same policy in which they simply offer only the themes that are shipped with phpMyAdmin.
Having a bit of color blindness, I've become attached to the Darkblue/Orange theme but this theme is no longer part of the standard install for v. 188.8.131.52.
Please include this these as a part of the standard installation/shipped version of phpMyAdmin.