Install-KDE-Themes/Icons
From MEPIS Documentation Wiki
Install-KDE-Themes/Icons
Simply download the theme or icon package - usually a compressed tar.gz type file - to your home directory. A good site to for getting themes/icons:
No need to extract the archive to install it - just open the KDE Control Centre (kcontrol at a command prompt) - Click on 'Appearance & Themes' - then select either 'Icons' or 'Theme Manager' - and click 'Install New Theme' - it's the same process for icons and themes - just browse to the downloaded theme/icon package - select it and click OK. To use the new theme or icons - select the newly added theme or icons from the list and click 'Apply'. Easy!
For a graphical 'how-to' see here
Note: There may be some themes that have a different install method - read the release notes from the download page to be sure.
