void DrawOverviewScreen()
{
GUILayout.Space(10); // extra top padding
GUILayout.BeginHorizontal();
GUILayout.Space(10); // extra left padding
DrawTotalSize();
GUILayout.Space(CATEGORY_HORIZONTAL_SPACING);
GUILayout.BeginVertical();
DrawBuildSizes();
GUILayout.Space(CATEGORY_VERTICAL_SPACING);
DrawDLLList();
GUILayout.EndVertical();
GUILayout.Space(20); // extra right padding
GUILayout.EndHorizontal();
}