However, the scrollbars are rendered by the browser, not by Gantt. If the height is 4, most likely, you are using Firefox that doesn’t allow customizing the width or height of the scrollbars.
Hello,
The width and height parameters can be applied depending on the parent cell. If the parent cell has the rows type, you can add the height parameter, and the width parameter is ignored. For the cols type, you can use the width parameter, and the `height parameter is ignored.
The scrollbars usually have the same parent as the layout cell they are attached to. So the width or height parameter that could work for them is ignored.
If you find the configuration with the height parameter in the scrollbars, probably, it was used in the older versions before the scroll_size config was added.