Ignition Perspective XY Chart – How to change hover tooltip background and text color separately from bar color?

I’m using an XY Chart in Ignition Perspective (v8.1) and need help customizing the hover tooltip styling. My chart has vertical bars with specific fill colors, but when I hover over a bar, the tooltip background automatically takes the same color as the bar. I want to change the tooltip background color (for example, to white) and the text color (for example, to black), without changing the bar color itself. I also want the same customization for the occurrences hover tooltip so both tooltips have consistent styling.