Invert black and white objects for nice printer output.

  CINVERT is an M-file that will recursively change the color

  properties of the given object, or the current Figure window by 

  default, and its children to give proper black on white hardcopy 




  When printing on white paper it looks nicer, and uses less

  ink/toner, to plot MATLAB graphics on a white background; instead

  of the default black background used on screen. Since the background

  changes, some children of the Figure also need to be inverted

  to stay visible. Non black or white objects will not have their

  colors changed. 



  See value of 'params' in this M-file for list of what properties  

  of the different object types are to be inverted.



  See also PRINT6ZA50LG.