Set of 16 screen tools using screen of smart phone. (various signals, signs, measuring tools, etc.)

1) Screen Light : Light varying in brightness and color.(func.:Change colors)
2) Strobe Light : Blinking flash light.(func.:Change colors)
3) SOS Signal : SOS signal with blinking light.
4) Manual Signal : You can turn on and off and make signals on your own.
5) Light Stick : Can be used at performance halls. (func.:Change color and size)
6) Blink Sign : Light sign that blinks periodically. (func.:Change period)
7) Arrow Sign : Used to point somewhere when it is noisy or dark.
8) Patrol Sign : Red and blue light just like that of a police car.
9) DoNotDisturb Sign : Sign when you don’t want to be disturbed.
10) Sleep Light : Light which slowly fades away in 10 minutes. Can be restarted.
11) Candle Light : Candle for romantic atmosphere.
12) Candle Celebrations : Candles for celebrations.(func.:Turn on/off.Change numbers.)
13) Ruler : Measure length using screen.
14) Protractor : measure angles using screen.
15) Horizontal Leveler : measure horizontality
16) Magnifier : Magnifier with zoom function in camera.