weird html rendering in rmarkdown in latest Rstudio app

[eddyliji]

Hi, I downloaded the rstudio of latest version, but weird things happened. when I use highcharter or plotly to generate html graph in rmarkdown, it looks dim.

but when I move my cursor to that html graph, it becomes lighter, it's really annoying, does anyone knows the reason?

[eddyliji]

when my cursor moves on that html graph, it looks like this

[andresrcs]

I think that is by design, it happens with tables as well and I don't like it either.

[eddyliji]

is there any solution to deactivate this design, do you know about that?