When using the new bash-ts-mode to edit shell-scripts, simple shell-expansion expressions are fontified using (among other things) sh-quoted-exec face:

Examples below:

echo `test`

echo $(test)

Unfortunately, in both of these cases the enclosing brackets are also fontified using sh-quoted-exec. Not only makes this the shell-expansion expression harder to read, but it also makes the fontification of these brackets inconsistent with all other brackets in bash-ts-mode.

This seems to be due to an overly wide selector used in the tree-sitter rules, which can be easily narrowed without impacting the core function of the rule: highlighting shell-expansions.

Attached is a patch which implements this fix, and makes shell-expansion brackets highlighted consistently.

Cheers!