Problem description
In issue #472 and release 1.079, I corrected the problem that the default 1 and 7 had kerning, which prevented them from being properly tabular figures. However, there is still kerning between the period and 7 (and vice versa) that disrupts tabular data.

It’s also possible that other disruptive kerns exist, so resolving this issue should include a check for and solution to any other kerning that might be lurking around to disrupt tabular data.

Expected behavior

Default figures should work fully as tabular figures, including by having no kerning against adjacent punctuation likely to show up in tabular data (especially the period).

That, OR there should be a tnum feature that adds in a alts for period, etc, that are not kerned against numbers.