Redesign homepage IA icon

- remove the outer circle of the icons
- tint the icons including injected ones

Test: robotest, visual
Bug: 182870640
Change-Id: If72c37152f4f0d68e25149b11d497eef1c7ece91

src/com/android/settings/homepage/TopLevelSettings.java

@@ -21,6 +21,7 @@ import static com.android.settingslib.search.SearchIndexable.MOBILE;
 
 import android.app.settings.SettingsEnums;
 import android.content.Context;
+import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.provider.SearchIndexableResource;
 import android.util.FeatureFlagUtils;
@@ -28,8 +29,10 @@ import android.util.FeatureFlagUtils;
 import androidx.fragment.app.Fragment;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
+import com.android.settings.Utils;
 import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.dashboard.DashboardFragment;
@@ -102,6 +105,31 @@ public class TopLevelSettings extends DashboardFragment implements
         return true;
     }
 
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        super.onCreatePreferences(savedInstanceState, rootKey);
+        if (!FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.SILKY_HOME)) {
+            return;
+        }
+        final PreferenceScreen screen = getPreferenceScreen();
+        if (screen == null) {
+            return;
+        }
+        // Tint the homepage icons
+        final int tintColor = Utils.getHomepageIconColor(getContext());
+        final int count = screen.getPreferenceCount();
+        for (int i = 0; i < count; i++) {
+            final Preference preference = screen.getPreference(i);
+            if (preference == null) {
+                break;
+            }
+            final Drawable icon = preference.getIcon();
+            if (icon != null) {
+                icon.setTint(tintColor);
+            }
+        }
+    }
+
     @Override
     protected boolean shouldForceRoundedIcon() {
         return getContext().getResources()