* The Workbench GUI now has new screen sizes, screen top/left offsets,
    depths, modes, and fonts.

  * Default Tool now searches paths.

  * New Look (boxed) icons take more space.

  * Do not use icons which have more 1bits set in PlanePick than planes
    in the ImageData (one IFF-to-Icon utility does this).  Such icons
    will appear trashed on deeper Workbenches.

  * New Look colors have black and white swapped (as compared to 1.3).

  * The Workbench screen may not be open at startup-sequence time until
    some output occurs to the initial Shell window.  This can break
    startup-sequence-started games that think they can steal WB's screen
    bitplanes.  Do not steal the Workbench screen's bitplanes.  (For
    compatibility, booting off pre-2.0 disks forces the initial screen
    open. This is not guaranteed to remain in the system.)  Use startup
    code that can detach when RUN (such as cback.o) and use
    CloseWorkbench() to regain the screen's memory.  In addition, see
    "Workbench and Startup" in the "Additional Information" section
    below.