title: Which scope will LocalContentAlpha.current effect when I use Jetpack Compose?
body: <p>I run Code A to display the same icon with different color, and Result A is the value of <code>LocalContentAlpha.current</code>. I guess the <code>LocalContentAlpha.current</code> which locate different position will return different value.</p>
  <p>I guess that the <code>LocalContentAlpha.current</code> inside <code>Log.e(&quot;my&quot;, &quot;Enabled &quot;+LocalContentAlpha.current.toString() )</code> is the scope of <code>IconButton</code>.</p>
  <p>Could you tell me if the scope of <code>LocalContentAlpha.current</code> inside  <code>Log.e(&quot;my&quot;, &quot;Outside &quot;+LocalContentAlpha.current.toString() )</code> is <code>Row()</code> ?</p>
  <p><strong>Code A</strong></p>
  <pre><code>@Composable
  fun RecordTitleWithToolBar(   
  ){
       Row() {
  
          Log.e(&quot;my&quot;, &quot;Outside &quot;+LocalContentAlpha.current.toString() )
  
          IconButton(
              enabled = true,
              onClick = {}
          ) {
              DisplayIcon(icon=Icons.Filled.PlayArrow)
              Log.e(&quot;my&quot;, &quot;Enabled &quot;+LocalContentAlpha.current.toString() )  
          }
  
          IconButton(
              enabled = false,
              onClick = {}
          ) {
              DisplayIcon(icon=Icons.Filled.PlayArrow)
              Log.e(&quot;my&quot;, &quot;Disabled &quot;+LocalContentAlpha.current.toString() ) 
          }
      }
  }
  
  @Composable
  fun DisplayIcon(
      icon: ImageVector,
      dim:  Dp = 24.dp,
      tint: Color = Color.Blue
  ) {
      Icon(icon, null, modifier = Modifier.size(dim), tint = tint.copy(LocalContentAlpha.current))
  }
  </code></pre>
  <p><strong>Result A</strong></p>
  <pre><code>2022-08-28 21:02:59.384 26068-26068/info.dodata.soundmeter E/my: Enabled 0.87
  2022-08-28 21:02:59.387 26068-26068/info.dodata.soundmeter E/my: Disabled 0.38
  2022-08-28 21:02:59.466 26068-26068/info.dodata.soundmeter E/my: Outside 0.87
  2022-08-28 21:02:59.471 26068-26068/info.dodata.soundmeter E/my: Enabled 0.87
  2022-08-28 21:02:59.475 26068-26068/info.dodata.soundmeter E/my: Disabled 0.38
  2022-08-28 21:02:59.480 26068-26068/info.dodata.soundmeter E/my: Outside 0.87
  2022-08-28 21:02:59.485 26068-26068/info.dodata.soundmeter E/my: Enabled 0.87
  2022-08-28 21:02:59.487 26068-26068/info.dodata.soundmeter E/my: Disabled 0.38
  </code></pre>