Some "minor" improvements to SuperVision

[awesomeaudio]

Another FR

@Aurasphere

Supervision has some great options. It allows for spectrum inspection without going through ARA/Spectral layers when you arent really using the tools in it.

Whilst positional capabilities are on the cursor readout, when you want actual detailed freq info which is the whole point, how do you get that to readout at mouse points on the display?

Else its kind of half baked/useless except for eye candy ie its mean to be a problem solver

Supervision Spectrogram: How do you get freq readout on the cursor - Cubase - Steinberg Forums

I would add to it, that we need a full crosshair in Spectrogram, not just the vertical line.

And also, allow us to change crosshair and text/info colour as sometimes, and depending on what Spectrogram colour you are using, it can be hard to see