Button::Style flatstyle;

void SetFlatStyle(Button &btn)
{
    flatstyle = btn.StyleNormal();
    flatstyle.look[0] = SColorFace();
    flatstyle.look[1] = SColorFace();
    flatstyle.look[2] = SColorFace();
    flatstyle.look[3] = SColorFace();
    btn.SetStyle(flatstyle);
}