text overflow with type = "symb" and no_data = TRUE

[rCarto]

plot.new()
plot.window(xlim = c(0, 1), ylim = c(0, 1), asp = 1)
box()
maplegend::leg(type = "symb", val = c("A", "B", "C"), no_data = T, 
               pos = "topright", cex_na = 5, col_na = 1, pch_na = 21)