text: material of Ref. [40]), one clearly observes that different processes occur on different lenght 
  
  scales. First, a macroscopic dewetting front recedes, leaving behind a seemingly dry substrate. 
  
  The macroscopic front can be transversely unstable resulting in large-scale (> 100µm) strongly 
  
  anisotropic ﬁngered structures. For fronts that move relatively quickly these macroscopic struc- 
  
  tures cover all the available substrate. However, when at a later stage the macroscopic front be- 
  
  comes slower, those ﬁngers become scarce and ‘macroscopic ﬁngering’ ﬁnally ceases. At this 