code: public void setGlowPulsating(final boolean PULSATING) {
          if (isGlowVisible() && PULSATING && !GLOW_PULSE.isRunning()) {
              GLOW_PULSE.start();
          } else {
              if (GLOW_PULSE.isRunning()) {
                  GLOW_PULSE.stop();
                  glowAlpha = 1.0f;
              }
          }
      }
docs: Enables / disables the pulsating of the glow effect
  @param PULSATING