r - How to change polygon colors to white when plotting a

I want to plot the polygons of this shapefile without the colors (just white with black borders); I also do not want the legend. I have tried scale_fill_manual and a few other things but to no avai

r - How to change polygon colors to white when plotting a shapefile with ggplot2 - Stack Overflow

r - How to I change the colour fill on stat_ellipsis(geom='polygon') to match the scale_color_brewer palette colours for PCA plot? - Stack Overflow

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