code: public String getStyleClassName() {
  
          if (isInsideProject() && isEditable()) {
              if (m_resource.getState().isChanged()) {
                  return "fc";
              } else if (m_resource.getState().isNew()) {
                  return "fn";
              } else if (m_resource.getState().isDeleted()) {
                  return "fd";
              } else {
                  return "nf";
              }
          }
          return "fp";
      }
docs: Returns the style class to use for the given resource.<p>
  
  @return style class name
  
  @see org.opencms.workplace.list.CmsListExplorerColumn#getExplorerStyleDef()