visualizations

[typeholes]

I'm seeing patterns in the traces, but it requires expanding deep trees and is a lot of lines to sift through.

Some visualization would be helpful. For example, a line or bar chart following the longest running child recursively.
Information that should be included:

1. duration - height?
2. type counts - stacked height?
3. trace node name - Label or color
4. possible local child count - width?