Creates a new GimpParamSpecItem specifying a [type@Item] property.
See ParamSpec.internal for details on property names.
| name |
Canonical name of the property specified. |
| nick |
Nick name of the property specified. |
| blurb |
Description of the property specified. |
| none_ok |
Whether no is a valid value. |
| flags |
Flags for the property specified. |
|
The newly created |