The Code

#include <PT6961.h>
//Variables:
int warm_white_pwm = 0;
int cold_white_pwm = 0;

 //Button debounce variables for Cold White Minus:
int cold_white_button_minus_button_state;
int cold_white_button_minus_last_button_state = LOW;
unsigned long cold_white_button_minus_last_debounce_time = 0;
unsigned long cold_white_button_minus_debounce_delay = 20;

 //Button debounce variables for Cold White Plus:
int cold_white_button_plus_button_state;
int cold_white_button_plus_last_button_state = LOW;
unsigned long cold_white_button_plus_last_debounce_time = 0;
unsigned long cold_white_button_plus_debounce_delay = 20;

 //Button debounce variables for Warm White Minus:
int warm_white_button_minus_button_state;
int warm_white_button_minus_last_button_state = LOW;
unsigned long warm_white_button_minus_last_debounce_time = 0;
unsigned long warm_white_button_minus_debounce_delay = 20;

 //Button debounce variables for Warm White Plus:
int warm_white_button_plus_button_state;
int warm_white_button_plus_last_button_state = LOW;
unsigned long warm_white_button_plus_last_debounce_time = 0;
unsigned long warm_white_button_plus_debounce_delay = 20;

 //Button debounce variables for All Increase:
int all_increase_button_button_state;
int all_increase_button_last_button_state = LOW;
unsigned long all_increase_button_last_debounce_time = 0;
unsigned long all_increase_button_debounce_delay = 20;

 //Button debounce variables for All Decrease:
int all_decrease_button_button_state;
int all_decrease_button_last_button_state = LOW;
unsigned long all_decrease_button_last_debounce_time = 0;
unsigned long all_decrease_button_debounce_delay = 20;

 //Button debounce variables for All Decrease:
int by_ten_modifire_button_button_state;
int by_ten_modifire_button_last_button_state = LOW;
unsigned long by_ten_modifire_button_last_debounce_time = 0;
unsigned long by_ten_modifire_button_debounce_delay = 20;

 //Dispay Variables:
int cold_ones = 0; //Cold White digit 1
int cold_tens = 0; //Cold White digit 2
int warm_ones = 0; // Warm White digit 1
int warm_tens = 0; //Warm White digit 2

//Pin initialization:
// Pin 2 = CS
// Pin 3 = CLK
// Pin 4 = DIN
PT6961 LED(4, 3, 2);

int cold_white_transistor = 9;
int warm_white_transistor = 10;

//Buttons:
int cold_white_button_minus = 7;
int warm_white_button_minus = 8;
int cold_white_button_plus = 5;
int warm_white_button_plus = 6;
int all_increase_button = 11; //increase both LEDs at the same time by same amount
int all_decrease_button = 12; //decrease both LEDs at the same time by same amount
int by_ten_modifire_button =A0; //speed up getting to curtain procentage by allowing it to be a coeficient of 10

void setup() {
    LED.initDisplay();
    Serial.begin(9600);
    pinMode(cold_white_transistor, OUTPUT);
    pinMode(warm_white_transistor, OUTPUT);
    pinMode(cold_white_button_minus, INPUT);
    pinMode(warm_white_button_minus, INPUT);
    pinMode(cold_white_button_plus, INPUT);
    pinMode(warm_white_button_plus, INPUT);
    pinMode(all_increase_button, INPUT);
    pinMode(all_decrease_button, INPUT);
    pinMode(by_ten_modifire_button, INPUT);

 }
void loop() {

//Debugging(Can be removed later) :
Serial.print("Cold White:");
Serial.print(cold_white_pwm);
Serial.print("  Warm White:");
Serial.print(warm_white_pwm);
Serial.print(" ");
Serial.print(warm_tens);
Serial.print(" ");
Serial.print(warm_ones);
Serial.print(" ");
Serial.print(cold_tens);
Serial.print(" ");
Serial.println(cold_ones);

//Cold White Pwm increase:
int cold_white_button_plus_reading = digitalRead(cold_white_button_plus);
if (cold_white_button_plus_reading != cold_white_button_plus_last_button_state) { // If the switch changed, due to noise or pressing:
    cold_white_button_plus_last_debounce_time = millis();
 }
if ((millis() - cold_white_button_plus_last_debounce_time) > cold_white_button_plus_debounce_delay) {   // whatever the reading is at, it's been there for longer than the debounce delay, so take it as the actual current state:
    // if the button state has changed:
    if (cold_white_button_plus_reading != cold_white_button_plus_button_state) { //If reading is opposite of buttonstate
       cold_white_button_plus_button_state = cold_white_button_plus_reading; //Set buttonstate to current reading
         if (cold_white_button_plus_button_state == HIGH){
            cold_white_pwm_increase(); //Goto function
    }
   }
 }
cold_white_button_plus_last_button_state = cold_white_button_plus_reading;

//Warm White Pwm increase:
int warm_white_button_plus_reading = digitalRead(warm_white_button_plus);
if (warm_white_button_plus_reading != warm_white_button_plus_last_button_state) {
    warm_white_button_plus_last_debounce_time = millis();
}
if ((millis() - warm_white_button_plus_last_debounce_time) > warm_white_button_plus_debounce_delay) {
    if (warm_white_button_plus_reading != warm_white_button_plus_button_state) {
        warm_white_button_plus_button_state = warm_white_button_plus_reading;
        if(warm_white_button_plus_button_state == HIGH){
            warm_white_pwm_increase();
        }
    }
}
warm_white_button_plus_last_button_state = warm_white_button_plus_reading;

//Cold White Pwm decrease:
int cold_white_button_minus_reading = digitalRead(cold_white_button_minus);
if (cold_white_button_minus_reading != cold_white_button_minus_last_button_state) {
    cold_white_button_minus_last_debounce_time = millis();
}
if ((millis() - cold_white_button_minus_last_debounce_time) > cold_white_button_minus_debounce_delay) {
    if (cold_white_button_minus_reading != cold_white_button_minus_button_state) {
        cold_white_button_minus_button_state = cold_white_button_minus_reading;
        if (cold_white_button_minus_button_state == HIGH) {
            cold_white_pwm_decrease();
        }
    }
}
cold_white_button_minus_last_button_state = cold_white_button_minus_reading;

//Warm White Pwm decrease:
int warm_white_button_minus_reading = digitalRead(warm_white_button_minus);
if (warm_white_button_minus_reading != warm_white_button_minus_last_button_state) {
    warm_white_button_minus_last_debounce_time = millis();
}
if ((millis() - warm_white_button_minus_last_debounce_time) > warm_white_button_minus_debounce_delay) {
    if (warm_white_button_minus_reading != warm_white_button_minus_button_state) {
        warm_white_button_minus_button_state = warm_white_button_minus_reading;
        if (warm_white_button_minus_button_state == HIGH) {
            warm_white_pwm_decrease();
        }
    }
}
warm_white_button_minus_last_button_state = warm_white_button_minus_reading;

//All increase:
int all_increase_reading = digitalRead(all_increase_button);
if (all_increase_reading != all_increase_button_last_button_state) {
    all_increase_button_last_debounce_time = millis();
}
if ((millis() - all_increase_button_last_debounce_time) > all_increase_button_debounce_delay) {
    if (all_increase_reading != all_increase_button_button_state) {
        all_increase_button_button_state = all_increase_reading;
        if (all_increase_button_button_state == HIGH) {
            all_increase();
        }
    }
}
all_increase_button_last_button_state = all_increase_reading;

//All decrease:
int all_decrease_reading = digitalRead(all_decrease_button);
if (all_decrease_reading != all_decrease_button_last_button_state) {
    all_decrease_button_last_debounce_time = millis();
}
if ((millis() - all_decrease_button_last_debounce_time) > all_decrease_button_debounce_delay) {
    if (all_decrease_reading != all_decrease_button_button_state) {
        all_decrease_button_button_state = all_decrease_reading;
        if (all_decrease_button_button_state == HIGH) {
            all_decrease();
        }
    }
}
all_increase_button_last_button_state = all_increase_reading;

//Functions:
void cold_white_pwm_increase() {
           if (cold_white_pwm >= 0 && cold_white_pwm < 99) {
          if(digitalRead(by_ten_modifire_button) == HIGH && cold_white_pwm < 89)  //By 10 modifire
      {
        cold_white_pwm = cold_white_pwm + 10;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    else
      {
        cold_white_pwm ++;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
     }
}

void warm_white_pwm_increase() {
    if(warm_white_pwm >= 0 && warm_white_pwm < 99)
   {
    if(digitalRead(by_ten_modifire_button) == HIGH && warm_white_pwm < 89) //By 10 modifire
      {
        warm_white_pwm = warm_white_pwm + 10;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    else
      {
        warm_white_pwm ++;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
   }
}

void cold_white_pwm_decrease() {
if(cold_white_pwm < 100 && cold_white_pwm > 0)
 {
    if(digitalRead(by_ten_modifire_button) == HIGH && cold_white_pwm > 11) //By 10 modifire
      {
        cold_white_pwm = cold_white_pwm - 10;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    else
      {
        cold_white_pwm --;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
   }
}

void warm_white_pwm_decrease() {
if(warm_white_pwm < 100 && warm_white_pwm > 0)
 {
    if(digitalRead(by_ten_modifire_button) == HIGH && warm_white_pwm > 11) //By 10 modifire
      {
        warm_white_pwm = warm_white_pwm - 10;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    else
      {
        warm_white_pwm --;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    }
}

void all_increase() {
if(warm_white_pwm >= 0 && warm_white_pwm < 99 && cold_white_pwm >= 0 && cold_white_pwm < 99)
 {
    if(digitalRead(by_ten_modifire_button) == HIGH && warm_white_pwm < 89 && cold_white_pwm < 89) //By 10 modifire
      {
        warm_white_pwm = warm_white_pwm + 10;
        cold_white_pwm = cold_white_pwm + 10;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    else
      {
        warm_white_pwm ++;
        cold_white_pwm ++;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
   }
}

void all_decrease() {
if(warm_white_pwm < 100 && warm_white_pwm > 0 && cold_white_pwm < 100 && cold_white_pwm > 0)
 {
    if(digitalRead(by_ten_modifire_button) == HIGH && warm_white_pwm > 11 && cold_white_pwm > 11) //By 10 modifire
      {
        warm_white_pwm = warm_white_pwm - 10;
        cold_white_pwm = cold_white_pwm - 10;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
    else
      {
        warm_white_pwm --;
        cold_white_pwm --;
        cold_ones = (cold_white_pwm%10);
        cold_tens = ((cold_white_pwm/10)%10);
        warm_ones = (warm_white_pwm%10);
        warm_tens = ((warm_white_pwm/10)%10);
        LED.sendDigits(warm_tens,warm_ones,cold_tens,cold_ones,1);
      }
   }
}