Re-Coloured Feel

Does anyone know how I can apply a Re-Coloured Feel in-game through script? Like this?

http://cloud-2.steampowered.com/ugc/594740593203605508/A120B2522F95D8853E9A4AF5D91A3B4F7178C341/

By calling DrawColorModify in RenderScene. Look at how the effect does it.