| Class | Description |
|---|---|
| Color | A Color Expression and a set of Color Utilities used in the Style module. |
| Expression | A base class for all Expressions. |
| Expressions | The Expressions class holds static methods for creating new Expressions (Expression, Color, Function, Property). |
| Filter | A Filter is a predicate or constraint used to match or filter Feature objects. |
| Function | A GeoScript Function either wraps an existing GeoTools Function or an CQL String. |
| ProcessFunction | A Function that wraps a Process for rendering transformations. |
| Property | Property is an Expression that is a Field value |