Adjust the thickness of a bar on the gantt chart based on its capacity

It would be useful to adjust the thickness of the bars on the chart depending on the amount of resources we are allocating to that project.

For example, the horizontal length of a bar on the chart is determined by the duration/time of the project, but let's say a project will need more resources allocated to it than the others. We could represent this visually using the vertical width of the bar.