A kind of progress bar ?

[Olivier Ramare <Olivier Ramare univ-lille1 fr>]

Dear all,

 Here is the widget I need, with some context:
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I have n (say 5000) given positions to evaluate.
Each evaluation takes about a 1/10 of a second
and results in a diagnosis : I(mpossible) or O(ptimal)
      or sometimes, there's three states
      I(mpossible), ?(undecided) or O(ptimal)
Anyway, a finite number of states, but let us say two.

Just now I have a progress buffer in which all these
evaluations are recorded one after another :-(

What I would like is one progress bar with two cursors,
and two colors.
For people who know xosview, the amount of memory
is shown this way :
     green for used memory
    orange for buff (I-dont-know-what-that-is)
    red for cache
    background for free
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I didn't find it, but I'm pretty sure I didn't look at the right
place :-(
Many thanks in advance!!
Best,
Amities,
              Olivier