Is there any explanation why some codepoints are narrower, and some are bellow the baseline? That seems quite weird.
Earlier this year, I added basic histograms / sparklines using these characters to a log summary script we use for quick and dirty bug triage at Wikimedia. It’s proven to be a really helpful display pattern, and I’ll probably use it elsewhere.
Dredging up some adjacent links from my browser history & bookmarks in case they’re useful for anyone else: