problems with color of the border of nodes in visLegend

[gorkitag]

Hi! I'm having issues defining color of borders of nodes in visLegend . This is tehe code i'm using:

    visLegend(
      addNodes = data.frame(
        label = c("correlación +1", "correlación +0.5", "correlación 0", "correlación -0.5", "correlación -1"),
        shape = "box",
        color = c("blue", "#8080FF", "white", "#FF8080", "red"),
        borderWidth = 2,
        color.border =c( "black", "black", "black", "black", "black"),
        font.color = c("white", "black", "black", "black", "black")
        
      ),
      useGroups = FALSE,
      main = "CORRELACIONES",  
      position = "left",
      width = 0.1
    )

But the colors of the borders when I execute my shiny app aren't those, and the issue is that the node '"correlación 0" is white but the border appears to be white too, so you can't see the border.