public boolean haveAllValuesChanged() {
		return false;
	}
Returns true if all colors, fonts, and icons may have changed. This doesn't guarantee that 
all the values have actually changed, just that they might have. In other words, a mass
change occurred (theme change, theme reset, etc.) and any or all values may have changed.
@return true if all colors, fonts, and icons may have changed.
Ghidra/Framework/Gui/src/main/java/generic/theme/ThemeEvent.java