| Class | Description | 
|---|---|
| ColorStringMapper | 
 Color to hex string mapper. 
 | 
| ConstantStringMapper | 
 Mapper that returns a constant value not
  depending on the input value. 
 | 
| IterableStringMapper | 
 The iterable string mapper can be used to map an object
  that can be iterated over (e.g. 
 |