Fix reacting to color changes.
Fix reacting to color changes.

svn path=/trunk/kdenetwork/kmail/; revision=161086

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi