set only one field color in a POWL-List

Hi,

in the method "IF_POWL_FEEDER~GET_FIELD_CATALOG" the whole colume (see attachment) can be colored.

CASE <ls_dfies>-fieldname.       WHEN 'LANGU'.         ls_fieldcat-colpos         = 1.         ls_fieldcat-display_type  = 'BT'.         ls_fieldcat-color  = 19.         ls_fieldcat-WIDTH  = '800'.         ls_fieldcat-text_ref      = 'LANGU'.       WHEN 'CHANGED_ICON'.         ls_fieldcat-icon_src_ref  = <ls_dfies>-fieldname.         ls_fieldcat-display_type  = 'IM'.   "Icon         ls_fieldcat-tooltip       =  text-006.         ls_fieldcat-color         = '4'.
.....  

But how can I colorize  only one field in the POWL.

Regards

Jim