Currency Labels Would Make It Even Better
I like the tool. But until I can commit all 8 currency colors to memory (some of which don't often take their turn at the extremes,) they are just pretty colors and many clicks to find which currency they represent.
It would be even better if each currency line was labeled (color coordinated) beyond the leading chart edge. For those that don't agree they can scroll the currency labels out of view.
For those that don't want to have to keep looking up which color is which currency, can scroll them into view. (Also maybe have the currency label appear in the hover line over info.)