# FieldBasedColorCoding

Sets a card color based on a value of some custom field.
Extends [ColorCoding](api-entity-ColorCoding.html)

## Attributes

This table describes attributes of the `FieldBasedColorCoding` entity.

* To receive an attribute in the response from the server, specify it explicitly in the `fields` request parameter.

* To update an attribute, provide it in the body of a POST request.

|  Field  |  Type  |  Description  |
| --- | --- | --- |
|  id  |  String  |  The ID of the FieldBasedColorCoding. `Read-only`.  |
|  prototype  |  [CustomField](api-entity-CustomField.html)  |  Sets the color of the card based on this custom field. `Can be null`.  |