No slider. A bigger shutter icon itself is the slider.
No buttons. Touching the slider lets the slider drive up or down depending on its state. While driving the slider indicates with red blinking. Touching the slider while blinking sends the stop command.
No slider. A bigger shutter icon itself is the slider. No buttons. Touching the slider lets the slider drive up or down depending on its state. While driving the slider indicates with red blinking. Touching the slider while blinking sends the stop command.