Default tooltip text colours different from desktop

I noticed a similar issue last week, as it seems the new "Modern visual tooltip" format with drill actions & different default colors is now showing up in some (but not all) of my reports in the Service... but yet I had not changed any of my reports (either in Desktop or the Service) to use the Modern tooltips yet, nor had I republished any reports or apps. 

Looking at the "Settings" for these reports within their respective Workpaces, I was able to see that the "Modern visual tooltip" option was flipped to "ON" somehow (maybe from a recent Power BI Service release?).  I toggled that option back OFF, saved the settings for the report and then viewing the report within that workspace it now showed my original tooltip again (with original colors and no drill actions).  I then updated my related App, to push the setting out to the report in the App, so now the tooltips for that report appear in their original format again.

I'm not sure if I will revert this setting on each report or not yet, as it seems Microsoft may be pushing for GA of the Modern tooltip option (which has been in preview for a few years), so I might decide to leave the new look in place.  At least my tooltips were not white on white default colors, so they are still visible.  But it's the visibility of the "drill up/down" actions on the Modern tooltip format that I'm not sure I like, or want to see, as I purposefully hid those drill options from the visual header icons (so end-users can't use them), but I don't think there is a way to hide them from being part of the modern tooltip.

Hope this helps others running into this new tooltip issue.