private void updateFocusFlashing() {
		if (hasText) {
			// no need to flash focus when the user is typing in the filter field
			stallFocusFlashing();
		}
		else {
			stopFocusFlashing();
		}
	}
Returns the accessible name prefix set by a previous call to 
{@link #setAccessibleNamePrefix(String)}.  This will be null if not set.
@return the prefix
Ghidra/Framework/Docking/src/main/java/docking/widgets/filter/FilterTextField.java