New Design for Gantt charts

The current design on the gantt chart and the table looks a bit old in modern UX terms. Are there any plans for a visual update from the current version ?

The Gantt provides several predefined skins that you can use to change the overall look of the Gantt chart: ;
Also, you can create a custom CSS theme just copy CSS file with one of the existing skin and update CSS rules according to your needs.
You can override default classes, and add your own classes for some elements using template functions. The template which is used to styling has the class in the name, like the gantt.templates.scale_cell_class or gantt.templates.task_class.
In some cases, there is no way to style the element without the !important keyword, so it’s okay to use it in these cases.
Here is an article to the templates documentation: