I would like to have a "SimplifiedArea" borders and color filling for each country exactly following the border line, but I get this rough profile
GeoRegionValuePlot[{GeoVariant[Entity["Country", "Spain"], "SimplifiedArea"] -> 11.,
GeoVariant[Entity["Country", "Italy"], "SimplifiedArea"] -> 9,
GeoVariant[Entity["Country", "Austria"], "SimplifiedArea"] -> 5},
ColorFunction -> (Directive[Opacity[#], Red] &), ImageSize -> 1000,
GeoRange -> {{34, 60}, {-17, 30}},
GeoBackground -> {"CountryBorders", "Land" -> White, "Ocean" -> None, "Border" -> Lighter@Gray}, GeoProjection -> "Robinson"]
Is there any way to draw the same borders are coloured? Best