code: function appendColorCell( targetRow, color ) {
  			var cell = new $el( targetRow.insertCell( -1 ) );
  			cell.setAttribute( 'class', 'ColorCell' );
  			cell.setAttribute( 'tabIndex', -1 );
  			cell.setAttribute( 'role', 'gridcell' );
  
  			cell.on( 'keydown', onKeyStrokes );
  			cell.on( 'click', updateSelected );
  			cell.on( 'focus', updateHighlight );
  			cell.on( 'blur', removeHighlight );
  
  			cell.setStyle( 'background-color', color );
  			cell.setStyle( 'border', '1px solid ' + color );
  
  			cell.setStyle( 'width', '14px' );
  			cell.setStyle( 'height', '14px' );
  
  			var colorLabel = numbering( 'color_table_cell' );
  			cell.setAttribute( 'aria-labelledby', colorLabel );
  			cell.append( CKEDITOR.dom.element.createFromHtml( '<span id="' + colorLabel + '" class="cke_voice_label">' + color + '</span>', CKEDITOR.document ) );
  		}
docs: This function create a single color cell in the color table.