For example, a syntactic form box is labeled with "SYNTAX". Forms
such as `defform' and `defthing' now support a `#:kind' option
for setting the label.
original commit: 5ff3087677ec98ea626cca25b085f3c32138d5ca
For example, if you make a multi-column table with a
`racketblock' in each column, then the columns size
to fit the code --- instead of forcing the table width
to match the page width and forcing each column to take
an equal share width.
original commit: b7afb3cf8fbbf448af18805db2f32c130ba4d47b
