Uploading and installing themes and plugins are not allowed on a per blog basis. If there is something specific that you are interested in, let us know and we will take it under review to be added and made available globally for all blog sites. Please keep in mind that we only consider themes and plugins that are actively maintained by their developers, and play well in a multisite WordPress environment like WKU blogs.
To request a theme or plugin be added to the WKU blog environment, please use the Service Catalog. In the request, please provide a link to the desired theme or plugin, as well as a brief description as to why it is being requested for installation.