Balance sheet column headings should be the column's end date:

Balance Sheet 2020-07-03

                                      ||                                   2020-07-03
======================================++==============================================

But in the HTML output, it seems to be a date range instead:

It would be useful to add a way to quickly jump to the bottom or top of the ledger file. Currently it can be quite annoying to check if a new transaction has been added, if you have to scroll down a few thousand lines.

A similar app , beancount-mobile (https://github.com/xuhcc/beancount-mobile), simply uses two buttons of an upward/downward pointing arrow to allow this.