Transparency of "bubbles" in VRM widget graphs

When I hover my mouse on a widget graph, a “bubble” appears detailing the exact date/time and values at that moment. However, the background of this bubble is very dark and hides the graph lines behind it. Can the background be made more transparent, or the transparency be user selectable?

Hi @xavierlh1
I’ll pass on the suggestion to the VRM UI designer, thanks.