code: private void initButtonColorRipple(TypedArray attrs) {
  		int index = R.styleable.ActionButton_button_colorRipple;
  		if (attrs.hasValue(index)) {
  			buttonColorRipple = attrs.getColor(index, buttonColorRipple);
  			LOGGER.trace("Initialized Action Button Ripple Effect color: {}", getButtonColorRipple());
  		}
  	}
docs: Initializes the <b>Action Button</b> Ripple Effect color
  <p>
  Must be called after {@link #initButtonColorPressed(TypedArray)} for proper
  {@link #buttonColorRipple} initialization
  
  @param attrs attributes of the XML tag that is inflating the view