diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/EventRelationsAggregationUpdater.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/EventRelationsAggregationUpdater.kt
index 3ec43a44e6..ce87a58609 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/EventRelationsAggregationUpdater.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/EventRelationsAggregationUpdater.kt
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package im.vector.matrix.android.internal.session.room
 
 import im.vector.matrix.android.api.auth.data.Credentials
@@ -13,7 +28,11 @@ import im.vector.matrix.android.internal.database.query.where
 import io.realm.Realm
 import timber.log.Timber
 
-
+/**
+ * Acts as a listener of incoming messages in order to incrementally computes a summary of annotations.
+ * For reactions will build a EventAnnotationsSummaryEntity, ans for edits a EditAggregatedSummaryEntity.
+ * The summaries can then be extracted and added (as a decoration) to a TimelineEvent for final display.
+ */
 internal class EventRelationsAggregationUpdater(private val credentials: Credentials) {
 
     fun update(realm: Realm, roomId: String, events: List<Event>?) {
@@ -79,7 +98,6 @@ internal class EventRelationsAggregationUpdater(private val credentials: Credent
             } else {
                 //ignore this event for the summary
                 Timber.v("###REPLACE ignoring event for summary, it's to old ${eventId}")
-
             }
         }
 
diff --git a/vector/src/main/java/im/vector/riotredesign/core/di/AppModule.kt b/vector/src/main/java/im/vector/riotredesign/core/di/AppModule.kt
index 3fd6987997..7fff020802 100644
--- a/vector/src/main/java/im/vector/riotredesign/core/di/AppModule.kt
+++ b/vector/src/main/java/im/vector/riotredesign/core/di/AppModule.kt
@@ -19,7 +19,6 @@ package im.vector.riotredesign.core.di
 import android.content.Context
 import android.content.Context.MODE_PRIVATE
 import im.vector.matrix.android.api.Matrix
-import im.vector.riotredesign.core.resources.ColorProvider
 import im.vector.riotredesign.core.resources.LocaleProvider
 import im.vector.riotredesign.core.resources.StringProvider
 import im.vector.riotredesign.features.home.group.SelectedGroupStore
@@ -40,11 +39,7 @@ class AppModule(private val context: Context) {
         single {
             StringProvider(context.resources)
         }
-
-        single {
-            ColorProvider(context)
-        }
-
+        
         single {
             context.getSharedPreferences("im.vector.riot", MODE_PRIVATE)
         }