Install the moffittdocs package, in addition to xaringanthemer. With this pair (and an RStudio restart if a new installation), you can go to File -> New File -> R Markdown -> From Template to find the Moffitt Slides theme.
Install the moffittdocs package, in addition to xaringanthemer. With this pair (and an RStudio restart if a new installation), you can go to File -> New File -> R Markdown -> From Template to find the Moffitt Slides theme.