/// <summary>
/// Fade out all cells in current country in blue
/// </summary>
void PaintCurrentCountry() {
if (map.countryHighlightedIndex<0) return;
List<int> cellsInCountry = map.GetCellsInCountry(map.countryHighlightedIndex);
for (int k=0;k<cellsInCountry.Count;k++) {
map.CellFadeOut(cellsInCountry[k], Color.blue, 2.0f);
}
}