add changes to make the add user button up to spec

Test: tested on Mojave
Bug: 77869282
Change-Id: I75280675acf314734c9836babb7068a8379bf1c0
diff --git a/packages/SystemUI/res/drawable/car_add_circle_round.xml b/packages/SystemUI/res/drawable/car_add_circle_round.xml
new file mode 100644
index 0000000..cb9515c
--- /dev/null
+++ b/packages/SystemUI/res/drawable/car_add_circle_round.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="oval">
+            <solid
+                android:color="@color/car_dark_blue_grey_600"/>
+            <size
+                android:width="@dimen/car_fullscreen_user_pod_image_avatar_width"
+                android:height="@dimen/car_fullscreen_user_pod_image_avatar_height"/>
+        </shape>
+    </item>
+    <item
+        android:drawable="@drawable/car_ic_add_white"
+        android:gravity="center"/>
+</layer-list>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/car_ic_add_white.xml b/packages/SystemUI/res/drawable/car_ic_add_white.xml
new file mode 100644
index 0000000..98b37bf
--- /dev/null
+++ b/packages/SystemUI/res/drawable/car_ic_add_white.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="@dimen/car_touch_target_size"
+    android:height="@dimen/car_touch_target_size"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+  <path
+      android:fillColor="@color/car_body1_light"
+      android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>
\ No newline at end of file
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java b/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
index 41b70f8..dbd1cd4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
@@ -185,7 +185,7 @@
                         .getUserIcon(userRecord.mInfo));
             } else {
                 holder.mUserAvatarImageView.setImageDrawable(mContext
-                        .getDrawable(R.drawable.ic_add_circle_qs));
+                        .getDrawable(R.drawable.car_add_circle_round));
             }
             holder.mUserNameTextView.setText(userRecord.mInfo.name);
             holder.mView.setOnClickListener(v -> {