Another guts redesign

Test: atest
Bug: 131290247
Fixes: 131441935
Fixes: 131621405

Change-Id: I5a6840f3f2a5a241facaeab8cf9b19f41606d8ed
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index d765f0c..23de2ac 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -473,7 +473,7 @@
     </style>
 
     <style name="TextAppearance.NotificationImportanceHeader">
-        <item name="android:textSize">@dimen/notification_importance_description_text</item>
+        <item name="android:textSize">@dimen/notification_importance_header_text</item>
         <item name="android:fontFamily">@*android:string/config_bodyFontFamily</item>
         <item name="android:textColor">@color/notification_guts_header_text_color</item>
     </style>