private void changeToolStripMenuItem_Click(object sender, EventArgs e)
{
if (SelectedItems.Count() > 0)
{
colorDialog.Color = SelectedItems.FirstOrDefault().Color.ToRgb().ToGdiColor();
if (colorDialog.ShowDialog(this) == DialogResult.OK)
{
appPal.ChangeColors(SelectedItems, colorDialog.Color.ToRgbColor());
}
}
}