Soft Look For TSW (Less Contrast)

Less contrast to give a soft look.

1. Open Engine.ini with an editor
2. If you already have a customized engine.ini search for
   r.TonemapperGamma
   r.Color.Max
   r.Color.Mid
   r.Color.Min
   and delete these lines.
3. Add:
   [SystemSettings]
   r.TonemapperGamma=5
   r.Color.Max=1
   r.Color.Mid=0.25
   r.Color.Min=0
4. Save

Update:
If you like the standard look of TSW but want a smoother shadow rolloff give this a try:
[SystemSettings]
r.TonemapperGamma=4.5
r.Color.Max=1
r.Color.Mid=0.25
r.Color.Min=0