Customize column/row CSS style:
row item props:

                            {
                                classMap: "row-class",
                                styleMap: "background:#ddd;",
                                [columnId]ClassMap: "cell-class",
                                [columnId]StyleMap: "background:#ddd;" 
                            }
                        
column item props:

                            {
                                classMap: "column-class",
                                styleMap: "background:#ddd;",
                                headerClassMap: "header-class",
                                headerStyleMap: "background:#ddd;" 
                            }
                        
global row class:

                            .tg-even {}
                            .tg-odd {}
                            .tg-selected {}
                            .tg-hover {}