private void Update() { currentSliderFreq = parent.GetCurrentfreq(); if ((currentSliderFreq < (optimalFreq - freqRange)) || (currentSliderFreq > (optimalFreq + freqRange))) { image.color = new Color(1, 1, 1, 0); } else { image.color = new Color(1, 1, 1, 1); } //Disable/Enable Button if (image.color.a < 0.2f) { button.enabled = false; } else { button.enabled = true; } }