If you are away from your native IRC client, you can still access your server via the web. The web client can be accessed over https at your domain. Example: https://irc.teamrelaychat.nl. After entering your username and password, you are all set to chat as usual.
One special feature the web client offers is uploading files. Simply drag a file into the browser, or select the small icon in the bottom right. This also allows you to select files from Dropbox, Flickr and many other locations.
Kiwi comes with several themes that you can select in the settings pane. You can also choose to have the channels listed at the top or at the side.