Plots the box for the transition plot
prTpPlotBox(
bx,
bx_txt,
fill,
txt_clr,
txt_gpar = NULL,
cex,
line_col,
lwd,
prop = NA
)
void
A list with the x, y, height and width parameters
The box text
The fill color
The text color
The [grid::gpar()] object that is overridden with col & cex by other parameters
The font size
The line color around the box
The line width
Provide a proportion if the box should be split (0-1)