Toggle all the 25 LEDs on the LED screen - if an LED is on before the function is called, it will be off after; if an LED is off before the function is called, it will be on after.
led.toggleAll()The following code will result in every LED being on except for the LED at coordinate (2,2)
basic.clearScreen()
led.plot(2, 2)
led.toggleAll()basic.clearScreen()
led.plot(2, 2)
led.toggleAll()