             Dithering

Menu provides functions to work with
chunks and brightness:

Convert -  converts the screen into
           chunks picture
To screen - displays chunks picture
View      - view chunks picture
Load_     - load chunks picture
Save_     - save chunks picture

Brightness - the movement of the cursor 
             down/up is decrement/restore
             brightness of screen
Drive      - select the drive

 Chanks image is stored in the data page
of BGE, respectively, are overwritten
any module using this page.
