getRenderKey method

@override String getRenderKey()

Returns a unique cache key for this renderer configuration.

The cache key identifies the renderer's current configuration to enable proper cache separation. Keys should be identical for configurations that produce the same output and different for configurations that produce different results (e.g., different themes, font sizes, or data sources).

Returns unique string identifier for cache management

Implementation

@override
String getRenderKey() {
  return "${rendertheme.hashCode ^ useSeparateLabelLayer.hashCode}";
}