HP-48GX black and white screen: blue indicators?

[Dave Dirckx]

    Hello,

I already own an HP-48S and HP-48G and finally found an HP-48GX on eBay with a black and white screen which is indeed much clearer for me than the blue and green. I'm glad with it because the calculator is in a very good condition.

But I've remarked one thing that was a bit surprising to me: the status indicators (shift indicators, hourglass) on the top of the screen are still blue... Is this normal? I'm a bit surprised this is the case, I would expect that a LCD screen would be all with black pixels.

In fact nothing to worry about, but I wanted to ask it to the specialists here or other owners to confirm it. Thanks!