Hi. I modified the admin theme a little.

Added icons to a lot of things.
Modified buttons.
Reduced the application table width for better readability.
Added hover effect to table rows in application table.
Added a Copyright Info footer in base.html.
Modified breadcrumbs.
Added search icon to search input box.
Added two custom classes to bootstrap.min.css.
Modified Heading h2 in bootstrap.min.css.