title: Changing navigation back button icon dynamically doesn't work
body: <p>I need to set navigation back button dynamically
  when I do this `
  <code>viewBinding.toolbar.navigationIcon?.setColorFilter(Color.parseColor(theme.primaryTextColor), PorterDuff.Mode.MULTIPLY)</code> 
   it doesn't effect changing color or if I do</p>
  
  <p><code>viewBinding.toolbar.setNavigationIcon(R.drawable.ic_back)</code> in MainActivity
  where ic_back is white back button it doesn't work  it shows back button 
  or if I add this   <code>app:navigationIcon="@drawable/ic_back"</code> in xml it doesn't work 
  but when I set <code>app:theme="@style/ToolbarColoredBackArrow"<br>
      &lt;style name="ToolbarColoredBackArrow" parent="AppTheme"&gt;
          &lt;item name="android:textColorSecondary"&gt;#FFFFFF&lt;/item&gt;
      &lt;/style&gt;</code></p>
  
  <p>it works  why? I should do this without using theme</p>