void AddInstList(int indexIGEN, int indent, Color?background)
{
ListViewItem l = lv.Items.Add(
new ListViewItem(
new string[] { AudioModule.hyde.igen[indexIGEN].Generator.ToString(), GetInstString(indexIGEN), AudioModule.GetGenValueType(indexIGEN).ToString() },
GetInstImageKey(indexIGEN)
));
l.IndentCount = indent;
if (background != null)
{
l.BackColor = background.Value;
}
}