maintenance.css is not consistent with theme customizations

The theme settings page allows the admin to change the logo for any theme, including global settings that are applied everywhere.

However, misc/maintenance.css contains the default Drupal logo (druplicon.png) hard coded. It does not change no matter what, so it is not consistent with the theme used on the rest of the site.
So if I call:

print theme('maintenance_page', 'go away!');

the page that's displayed does not look similar to the rest of my site.

Please modify maintenance.css so that it uses the logo associated with the current active theme.