Figure styles
While working with Kermit for a longer period, users will experience that Kermit is not only a friendly-looking font family, but also practical to work with. All numbers are tabular for example. Also most currency symbols share the same tabular width, other currency symbols are duplexed, simplifying the creation of complex tables.
A hidden, but nevertheless handy feature of every number style is that they share the same metrics across all weights. This allows you to still switch from one weight to another, without any reflow of your chart. Of course all tabular figures share the same width from Thin to Black, but also for all Roman and all Italic fonts. This means you can mix Roman and Italic styles without any problem in your most complex tables.