There is only one scheme in Kibana 4.1, the light theme. You can modify the CSS directly, or wait for dark theme coming in Kibana 4.3: https://github.com/elastic/kibana/issues/2906
No sure exactly what your problem is , but just a note: You kibana (and elasticsearch) instance is completely open to the internet. Anyone can connect and wreak havoc on your data / configuration / saved objects. (So if nothing else , maybe not post the URL on a public forum)
Back to your problem - which data is being split that should not be ?
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