/** * Opens and returns the writer for the {@code color} property. The {@code color} property defines the color of the billboard. This color value is multiplied with the values of the billboard's "image" to produce the final color. If not specified, the default value is white. */ @Nonnull public final ColorCesiumWriter openColorProperty() { openIntervalIfNecessary(); return this.<ColorCesiumWriter> openAndReturn(getColorWriter()); }