Add reference boxes around each cell of the glyphmap.
Arguments
- data
A glyphmap structure.
- var_fill
Variable name to use to set the fill color
- color
Set the color to draw in, default is "white"
- size
Set the line size, default is 0.5
- fill
fill value used if
var_fill
isNULL
- ...
other arguments passed onto
ggplot2::geom_rect()