private void DrawHeader(ref Rect rect, GUIContent label)
{
Rect position = rect;
position.y++;
position.x += 5f;
position.width = EditorStyles.miniLabel.CalcSize(label).x;
position.height = EditorStyles.miniLabel.CalcSize(label).y;
GUI.Label(position, label, EditorStyles.miniLabel);
rect.y += 16f;
}