Summary
------- 
Class javafx.scene.shape.Box exposes a field by mistake. It is deprecated for removal.

Problem
-------

Class javafx.scene.shape.Box has a field named "DEFAULT_SIZE" which is mistakenly exposed. It should not be public.

Solution
--------

Deprecate for removal the mistakenly exposed class field so that it can be removed from the public API in a future version.

Specification
-------------
`javafx.scene.shape.Box`

```
+    /**
+     * Default size of the {@code Box}.
+     * @deprecated This field was exposed mistakenly and will be removed.
+     */
+    @Deprecated(since = "18", forRemoval = true)
     public static final double DEFAULT_SIZE = 2;
```