public static <T_ROW> ColumnBuilder<T_ROW, Number, Cell<Number>> percentBarColumnBuilder(
            final Function<T_ROW, Number> valueExtractor,
            final int warningThreshold,
            final int dangerThreshold) {

        return new ColumnBuilder<T_ROW, Number, Cell<Number>>(valueExtractor,
                () -> new PercentBarCell(warningThreshold, dangerThreshold));
    }
A builder for creating a text column with a hover icon to copy the text content of the cell

@param valueExtractor Function to extract a cell value from the {@code T_ROW}.
@param <T_ROW>        The row type
stroom-core-client/src/main/java/stroom/util/client/DataGridUtil.java