oscilloscope (per channel)

The "Oscilloscope (per channel)" dialog shows an individual oscilloscope for each channel during playback.

Right-clicking within the view will change it to the configuration view shown above:

"Columns" sets the number of columns the view will be split into.
"Size (ms)" sets what length of audio is visible in each oscilloscope.
"Center waveform" does its best to latch to the channel's note frequency and centers the display.
"Gradient" is presently unimplemented.
The color selector allows setting the waveform color. Right-clicking on it pops up an option dialog:
- Select between the square selector and the color wheel selector.
- "Alpha bar" adds a transparency selector.
The boxes below that are for selecting colors numerically by red-green-blue-alpha, hue-saturation-value-alpha, and HTML-style RGBA in hex.
The OK button returns from options view to regular.