Like the casino, the smartphone is a vivid color and the user's attention is revoked and the urge to "never separate".
According to the study of the NPO "Central for Humane Technology", these intense colors make the human brain warm and comfortable, and activate the reward system (brain system that makes you feel "pleasure").(It's one of the reasons why the color TV was a huge hit).However, if you use Gracecale Mode here, you can stop this enhancement.
The app called "GO GRAY", which will be released soon in the App Store, describes the screen from color to black and white as "like changing your favorite dessert into a disliked vegetable."This app is perfect for those who can change the smartphone screen to black and white for a certain period of time specified by the user, and keep scrolling Instagram unconsciously after returning home from work.
That said, without waiting for this app, changing the color settings of the terminal will help prevent time waste.

For iPhone:
「設定」>「一般」>「アクセシビリティ」>「ショートカット(一番下)」の順に選択し、「カラーフィルタ」にチェックを入れる。
If you press the home button (a model without a home button), press it three times quickly to switch to Gracecale mode.Next, the color screen is required (such as the use of "Maps").In that case, if you do the same operation, you can return it immediately.
For Android:
If you want to switch quickly, add gracecale settings to the notification shade that appears in the pull -down (bars that make brightness and Wifi settings, etc.).For this purpose, swipe the notification bar twice to open the notification area completely, and tap the editing icon at the lower left.From the next window, drag the tiles in the grascale setting up and set them in your favorite location.
Then tap the "Return" button.Now you can switch the grascale mode from the notice shade at any time.