Tooltip.js (bassistance.de) extraClass Issues

Tooltip.js (bassistance.de) extraClass Issues

Reference site:

I have 5 different Div ID's that have Tooltips assigned to them. Each of these ID's have a specific "extraClass" added to them so I can style the color for the H3 per Tooltip instance.

All 5 Tooltips are working, but it's adding every "extraClass" from every div ID to the Tooltip class. I tried including a line to remove the classes after each function, but it doesn't seem to work.

If I only use 2 Tooltips, such as the example shown here for different Tooltip styles on a single page, it will work. But more than 2 it bulks the classes together.

I need only 1 class per div ID. Can anyone help?