Barplots: possibility of adjusting the height of the space allocated to part names

In my recent experience of Specificity or Partition dimension barplots (TXM 0.8.4 / 0.8.4.1), part names are often truncated.

It would be helpful to have the possibility to manually adjust the size alloted to labels vs to bars.

In facts, in many cases, you can reduce the scale of bars without loosing information, whereas you really need to see the names to read and use the chart.