Out of the box the JCK Editor comes equipped with 2 skins - the default Office2007 and Kama skin.  So if fancy a change, you only need to go to the editor parameters and select a skin fitting your flavour!

 

 

Changing the editor's skin

To do this please visit ‘Extensions’ (which is in the top navigation menu) and navigate down to the ‘Plug-in Manager’ menu item. In the Plug-in Manager use the ‘Filter’ to locate the 'JoomlaCK' plug-in and then click on the 'Plugin Name' to edit and open up into a screen-called ‘Plugin: [Edit]’. On the right hand-side you will notice a list of parameters. Navigate  to ‘Skin’ and select a theme fitting your design.

Lastly click on 'Save' to save the new settings.