Parameterize Calculator Visualization Height (or switch to % like Width)

[slavkosky]

I like using STools on my vertical monitor (1600x2560), but the visualization block needs more vertical flexibility.

From style.scss

.visualization {
	display: block;
	width: 100%;
	height: 800px;
	border: 1px solid #4e5d6c;
}

Ideally, I'd like to see height: 80-100% or height: $visualizationHeight.

Here is what I see when I use STools Calculator, to better illustrate my issue: