feat: change color of performance waterfall

doric-android/devkit/src/main/java/pub/doric/devkit/ui/DoricDevPerfActivity.java

@@ -171,7 +171,7 @@ public class DoricDevPerfActivity extends DoricDevBaseActivity {
 
         @Override
         public void onBindViewHolder(@NonNull PerfCellHolder holder, int position) {
-            holder.itemView.setBackgroundColor(position % 2 == 0 ? Color.parseColor("#ecf0f1") : Color.WHITE);
+            holder.itemView.setBackgroundColor(position % 2 == 0 ? 0x2ff1c40f : 0x2f2ecc71);
             final AnchorItem anchorItem = anchorNodes.get(position);
             holder.layoutExpand.setVisibility(anchorItem.expanded ? View.VISIBLE : View.GONE);
             if (anchorItem.name.startsWith("Call")) {

doric-android/devkit/src/main/res/layout/activity_doricdev_perf.xml

@@ -2,6 +2,7 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="#eeeeee"
     android:orientation="vertical">
 
     <LinearLayout

doric-android/devkit/src/main/res/layout/item_doricdev_perf.xml

@@ -65,7 +65,8 @@
         android:id="@+id/layout_expand"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="#bdc3c7"
+        android:layout_marginBottom="10dp"
+        android:background="#0f000000"
         android:gravity="center_vertical"
         android:orientation="vertical"
         android:paddingLeft="15dp">