private @NotNull GraphCommitCellRenderer getGraphCommitCellRenderer() {
    TableCellRenderer cellRenderer = getCommitColumn().getCellRenderer();
    if (cellRenderer instanceof VcsLogNewUiTableCellRenderer) {
      cellRenderer = ((VcsLogNewUiTableCellRenderer)cellRenderer).getBaseRenderer();
    }
    return (GraphCommitCellRenderer)Objects.requireNonNull(cellRenderer);
  }
private @NotNull GraphCommitCellRenderer getGraphCommitCellRenderer()