Can someone reshape my script so that it is more clean and tidy? it works just looks ugly

Questions & Answers
1

'using UnityEngine;
using UnityEngine.UI;
using System.Collections;

 public class DisplayColor : MonoBehaviour {
     
     //public Button bigButton;
     public Button smallButton1;
     public Button smallButton2;
     public Button smallButton3;
     public Button smallButton4;
     public Button smallButton5;
     public Button smallButton6;
     public Button smallButton7;
     public Button smallButton8;
     public Button smallButton9;
     public Button smallButton10;
     public Button smallButton11;
     public Button smallButton12;
     public Button smallButton13;
     public Button smallButton14;
     public Button smallButton15;
     public Button smallButton16;
     public Button smallButton17;
     public Button smallButton18;
     public Button smallButton19;
     public Button smallButton20;
     public Button smallButton21;
 
 
     Color[] colors;
     
     // Use this for initialization
     void Start () {
         
         colors = new Color[]{smallButton1.image.color, smallButton2.image.color, smallButton3.image.color,smallButton4.image.color,smallButton5.image.color,smallButton6.image.color,smallButton7.image.color,smallButton8.image.color,smallButton10.image.color,
             smallButton11.image.color,smallButton12.image.color,smallButton13.image.color,smallButton14.image.color,smallButton15.image.color,smallButton16.image.color,smallButton17.image.color,smallButton18.image.color,smallButton19.image.color,smallButton20.image.color, smallButton21.image.color };
         GetComponent<Image>().color =  colors[Random.Range(0, colors.Length - 1)];
         
     }
     
 }
3

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;

  public class DisplayColor : MonoBehaviour {
      
      public Button[] buttons;
      List<Color> colors;
      void Start () {
      foreach (Button aButton in buttons){
           colors.add(aButton.image.color);
      }
      GetComponent<Image>().color =  colors[Random.Range(0, colors.Length - 1)];
          
      }
      
  }
2

This should work fine:

  using UnityEngine;
  using UnityEngine.UI;
  using System.Collections;
  
  public class DisplayColor : MonoBehaviour 
  {
      
      //public Button bigButton;
      public Button[] buttons;
      
      // Use this for initialization
      void Start () {
          GetComponent<Image>().color =  buttons[Random.Range(0, buttons.Length - 1)].image.color;
          
      }
      
  }
4

thank you all you for your help