wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);