Thanks for your reply, it was helpful.
However, my real request was not about the specific issues that I raised, and to which you responded, but rather about a need for documentation of the features of how to use the debugger once you do have it set up correctly and are in debug mode.
However, I want to respond to your answers.
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Value of variables. I loaded the BlinkWithoutDelay sketch and, yes, I saw currentMillis showing up as a Local, but I do not see any of the global variables, e.g. ledState, showing up as Global. Should they have been there?
I can put them in the Watch area and they behave as expected there. -
Poor contrast. Yes, that looks like the same issue. It is probably worse on some monitors than on others. I now find the Dark High Contrast theme to be the best (for me) when debugging - actually, it is the only one that is useful.