Save your eyes. Improve your sleep. Reduce visual clutter. These icons have been specifically calibrated to be visible during daytime while significantly reducing the visual stimulation to the brain that normal icons produce in low light. You will be able to feel the difference. Other iPhone dark icons sets do not use the right balance of grays to produce the softest effect for your eyes.
See installation instructions and icon list at the bottom of this page (including free test sample). Contact for icon requests.