// Remove highlighting from cell.
formatter.removeStyleName(row, column, "tty-GridCellHighlighted");
// Remove column highlighting.
for (int i = 1; i < grid.getRowCount(); i++) {
formatter.removeStyleName(i, column, "tty-GridColumnHighlighted");
}
// Remove row highlighting.
for (int j = 1; j < grid.getColumnCount(); j++) {
formatter.removeStyleName(row, j, "tty-GridRowHighlighted");