Cool. I should try that. I was a heavy TP user too.
Man, this reminds me of amber screen monitors. I liked them better than the green screen ones, but somehow, the amber ones seemed to be much less popular, at least in areas where I was.
That was a common choice for TUI software running in the 16-color PC textmode palette. I suppose the blue provided a "dark" background with less contrast than actual black. (TUI programs of the era generally had a pure black-and-white mode too, and the overall look there was not unlike that of *nix terminal-based software.)
I suspect it was in rather large measure because white on blue was the default for the DOS prompt in the early-mid eighties, and that in turn I always thought was because those were the colours of IBM's logo.
