Version: (using KDE 4.2.0) Installed from: Gentoo Packages When creating a new account in Kopete the wizard asks for the color to be used for this account. Setting this color at a later point through the 'Modify Account' dialog is not possible as there is the option for selecting a color missing.
In 4.3.1, there's now a 'Set Color' button right to the account list in the Kopete configuration dialog. Don't know when this was added, but this does now the job, thx for adding it!