@Override
		public void actionPerformed(ActionEvent event) {
			if (flashCount < MAX_FLASH_COUNT) {
				contrastColors();
				flashCount++;
			}
			else {
				stop();
				stallFocusFlashing();
			}
		}
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