private void pbPalette_MouseUp(object sender, MouseEventArgs e)
{
m_fPalette_Selecting = false;
// Record an undo action if the current color selection has changed
if (m_fPalette_OriginalColor != m_subpalette.CurrentColor)
{
m_subpalette.RecordUndoAction("select color", m_parent.ActiveUndo());
}
}