 uint8_t col_iter = 0; // Anti-ghosting 
 uint8_t row_i = 0;
 volatile uint8_t may_flip = 0;
-int pwm_planes[] = {0, 0, 1, 0, 0, 1, 0, 2}; // PWM "plane" running sequence
+int pwm_lengths[] = { 250, 100, 40 }; // microseconds per plane
 int pwm_i = 0; // Current PWM cycle
 uint8_t *buf_pwm = buf_a[0];
 

		if (row_i > 6) {
			row_i = 0;
			pwm_i++;
			if (pwm_i >= ARRAY_SIZE(pwm_planes)) {
				pwm_i = 0;
				if (may_flip) {
					buf_swap();
				}
			}
			// Switch to next PWM cycle
			buf_pwm = buf_front[pwm_planes[pwm_i]];
		}
	}



void driveDisplay() {
	static int cur_pin = pin_col[0];

	// Set run length
	Timer1.setPeriod(pwm_lengths[pwm_i]);
	
	// Main screen turn off.
	digitalWrite(cur_pin, HIGH);
