**Added:**

* <news item>

**Changed:**

* Circle now runs ``black`` checks on contents of bundled xontribs

* The ``black`` checks no longer skip some files buried deeper in the directory
  tree.

**Deprecated:**

* <news item>

**Removed:**

* <news item>

**Fixed:**

* ``black`` formatted all xontribs

**Security:**

* <news item>