add comments

com.unity.uiwidgets/Runtime/material/animated_icons/animated_icons.cs

-using System.Collections.Generic;
 using Unity.UIWidgets.animation;
 using Unity.UIWidgets.foundation;
 using Unity.UIWidgets.ui;
 using Color = Unity.UIWidgets.ui.Color;
 
+/**
+ * In the animated icon data files, we have made some changes to optimize the compilation speed for il2cpp
+ * Specifically, we change all instance of Offsets to 2 separate floats throughout the file
+ *
+ * In this file, we change the codes a bit to support these changes. Please think twice and test on the Gallery sample
+ * if you want to make further changes here
+ */
+
+    
     static class AnimatedIconUtils {
         public static float _interpolate(float[] values, float progress) {
             D.assert(progress <= 1.0f);

com.unity.uiwidgets/Runtime/material/animated_icons/data/add_event.g.cs

 using Unity.UIWidgets.ui;
 using UnityEngine;
 
+/**
+ * In the animated icon file, we have made some changes to optimize the compilation speed for il2cpp
+ * Specifically, we change all instance of Offsets to 2 separate floats throughout the file
+ *
+ * To make such changes, you can use the following two replace cmds in VSCode
+ * (1) replace Offset\((.*?)\)  with $1
+ * (2) replace <Offset>    with new float[]
+ */
+
 namespace Unity.UIWidgets.material {
     partial class AnimatedIconsData {
         public static readonly _AnimatedIconData _add_event = new _AnimatedIconData(

com.unity.uiwidgets/Runtime/material/animated_icons/data/arrow_menu.g.cs

 using Unity.UIWidgets.ui;
 using UnityEngine;
 
+/**
+ * In the animated icon file, we have made some changes to optimize the compilation speed for il2cpp
+ * Specifically, we change all instance of Offsets to 2 separate floats throughout the file
+ *
+ * To make such changes, you can use the following two replace cmds in VSCode
+ * (1) replace Offset\((.*?)\)  with $1
+ * (2) replace <Offset>    with new float[]
+ */
+
 namespace Unity.UIWidgets.material {
     partial class AnimatedIconsData {
         public static readonly _AnimatedIconData _arrow_menu = new _AnimatedIconData(

com.unity.uiwidgets/Runtime/material/animated_icons/data/close_menu.g.cs

 using Unity.UIWidgets.ui;
 using UnityEngine;
 
+/**
+ * In the animated icon file, we have made some changes to optimize the compilation speed for il2cpp
+ * Specifically, we change all instance of Offsets to 2 separate floats throughout the file
+ *
+ * To make such changes, you can use the following two replace cmds in VSCode
+ * (1) replace Offset\((.*?)\)  with $1
+ * (2) replace <Offset>    with new float[]
+ */
+
 namespace Unity.UIWidgets.material {
     partial class AnimatedIconsData {
         public static readonly _AnimatedIconData _close_menu = new _AnimatedIconData(

com.unity.uiwidgets/Runtime/material/animated_icons/data/ellipsis_search.g.cs

 using Unity.UIWidgets.ui;
 using System.Collections.Generic;
 
+/**
+ * In the animated icon file, we have made some changes to optimize the compilation speed for il2cpp
+ * Specifically, we change all instance of Offsets to 2 separate floats throughout the file
+ *
+ * To make such changes, you can use the following two replace cmds in VSCode
+ * (1) replace Offset\((.*?)\)  with $1
+ * (2) replace <Offset>    with new float[]
+ */
+
 namespace Unity.UIWidgets.material
 {
     partial class AnimatedIconsData

com.unity.uiwidgets/Runtime/material/animated_icons/data/event_add.g.cs

 using Unity.UIWidgets.ui;
 using System.Collections.Generic;
 
+/**
+ * In the animated icon file, we have made some changes to optimize the compilation speed for il2cpp
+ * Specifically, we change all instance of Offsets to 2 separate floats throughout the file
+ *
+ * To make such changes, you can use the following two replace cmds in VSCode
+ * (1) replace Offset\((.*?)\)  with $1
+ * (2) replace <Offset>    with new float[]
+ */
+
 namespace Unity.UIWidgets.material {
     partial class AnimatedIconsData {
         public static readonly _AnimatedIconData _event_add =new  _AnimatedIconData(