I tried exporting my Gantt as a PNG (for import to PPT) and noticed that the Duration field in my Task list has been rendered with a decimal. Given GanttProject does not support fractions of days for tasks, there’s no need to support fractions of days in the PNG export. For example, GanttProject shows “1” for a single-day task, but the PNG shows “1.0 days”.
As an example, this is my Task List:
And this is how that’s shown in the PNG export:
Hopefull that’s a simple change.
Also, I see the column spacings differ which is causing text to overflow and the date appears too close to the duration, which makes them hard to differentiate.