Command line has gone dark in Rhino 7

Cannot read the command line this morning. Maybe black text on a dark gray field. Illegible in any event.

Have been toying with gray backgrounds, but cannot seem to backtrack on the source of this command line problem.

Thank you for your insights. Michael
command line blackout

The control is in Options > Appearance:

You can also click the Restore defaults button at the bottom if you have several color issues.