[amibroker] can i change each work sheet background to different colours in AB 9

[kurian joseph Amprayil <cuccujoe@xxxxxxxxx>]

hai 
  pls  help me on this
   
  1.i am using AB 9.can i keep one worksheet background to black and price bar some light colour.whn i try all work sheet use to change its background.
  2.how can sort scrips by  volumee 
  3.how to assign industry and group,,shoul i do it manually
   
  thanks in advance
  kurian joseph
   

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