Issue with serializing enum to schema

Hi, i am trying to convert object to schema, where i'm using few enums. And sometimes the same enum is used in few places. I would love to have enum saved as separate object with references there, instead of multiple repetitions of field like this:
```
"theme" : {
"type" : "string",
"enum" : [ "LIGHT", "DARK" ]
},
```

Is there any way to achieve that?