非常暗 Very Dark

雖然說有許多可以降低亮度的APP，但我覺得設定都太複雜啦~
這APP基本上安裝完，開啟一次設定亮度，就不用再理會他了

接下來"非常暗"只會依照以下條件，再讓你的螢幕變更暗:
1. 自動亮度必須關閉
2. 亮度調到最低

技術簡介:
背光模組一定有他的最低亮度，低於最低亮度後就只有不亮
所以很難有從微光到完整發亮的線性曲線

所以當亮度低到最低亮度後，就不能降低了，此時要再降低亮度只有一個方法: 就是用類似濾藍光的filter
簡單講就是弄一張半透明的黑色在螢幕最上層，利用LED上面的LCD來降低亮度

本APP在ZF6上開發，可能有兩個限制造成其他型號手機工作不正確 (請大家協助驗證)
1. ZF6解析度 720x1280 更高解析度手機我不確定半透明的黑色會不會只變成一小張在中間
2. ZF6最低亮度為15，所以邏輯上是小於16我就開啟半透明的黑色，若是其他手機的最低亮度大於15，那"非常暗"就沒辦法被執行(因為永遠到達不了15)

Although many can reduce the brightness of the APP, but I think are too complicated to set friends ~
This APP is basically installed, open once set the brightness, they do not care about him

Next was "very dark" only in accordance with the following conditions, the screen let you change the dark:
1. Automatic brightness must be closed
2. brightness to the minimum

Technical Description:
Backlight must have his lowest brightness, lower than the minimum brightness after only does not shine
It is difficult to have from shiny shimmer to complete linear curve

So when the low brightness to minimum brightness after, it is not reduced, this time only one way to reduce the brightness again: that is similar filter blue filter
Simply, it is to get a translucent screen black on the top, use LED to reduce the brightness of the LCD above

The APP on ZF6 development, there may be two other models of mobile phones to work limitations caused by incorrect (please assist verification)
1. ZF6 resolution of 720x1280 higher resolution phone I'm not sure translucent black will not become just a small piece in the middle
2. ZF6 minimum brightness is 15, so the logic is less than 16 I turned translucent black, if the minimum brightness of more than 15 other mobile phones, it was "very dark" no way to be executed (because never get to 15)