Use logo (white) for generic track (replaces similar a png with gradient).

src/main/AndroidManifest.xml

@@ -23,7 +23,7 @@ limitations under the License.
         android:name=".Startup"
         android:allowBackup="false"
         android:hardwareAccelerated="true"
-        android:icon="@drawable/ic_logo"
+        android:icon="@drawable/ic_logo_color_24dp"
         android:label="@string/app_name"
         android:theme="@style/ThemeCustom">
 
@@ -133,7 +133,7 @@ limitations under the License.
             android:name=".services.TrackRecordingService"
             android:enabled="true"
             android:exported="false"
-            android:icon="@drawable/ic_logo"
+            android:icon="@drawable/ic_logo_color_24dp"
             android:label="@string/recording_service" />
     </application>
     <supports-screens

src/main/java/de/dennisguse/opentracks/ChartView.java

@@ -191,7 +191,7 @@ public class ChartView extends View {
         markerPaint.setColor(context.getResources().getColor(android.R.color.darker_gray));
         markerPaint.setAntiAlias(false);
 
-        pointer = context.getResources().getDrawable(R.drawable.ic_logo);
+        pointer = context.getResources().getDrawable(R.drawable.ic_logo_color_24dp);
         pointer.setBounds(0, 0, pointer.getIntrinsicWidth(), pointer.getIntrinsicHeight());
 
         Drawable statisticsMarker = getResources().getDrawable(R.drawable.ic_marker_yellow_pushpin);

src/main/java/de/dennisguse/opentracks/services/TrackRecordingService.java

@@ -425,7 +425,7 @@ public class TrackRecordingService extends Service {
                 .setContentText(getString(messageId))
                 .setContentTitle(getString(R.string.app_name))
                 .setOngoing(true)
-                .setSmallIcon(R.drawable.ic_logo)
+                .setSmallIcon(R.drawable.ic_logo_color_24dp)
                 .setCategory(Notification.CATEGORY_SERVICE)
                 .setWhen(System.currentTimeMillis());
         startForeground(1, builder.build());

src/main/java/de/dennisguse/opentracks/util/TrackIconUtils.java

@@ -79,10 +79,10 @@ public class TrackIconUtils {
      */
     public static int getIconDrawable(String iconValue) {
         if (iconValue == null || iconValue.equals("")) {
-            return R.drawable.ic_track_generic;
+            return R.drawable.ic_logo_24dp;
         }
         Pair<Integer, Integer> pair = MAP.get(iconValue);
-        return pair == null ? R.drawable.ic_track_generic : pair.second;
+        return pair == null ? R.drawable.ic_logo_24dp : pair.second;
     }
 
     /**

src/main/res/drawable/ic_logo_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="100"
+    android:viewportHeight="100">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M82.489,12.834C83.196,10.418 82.043,9.556 79.926,10.917L10.087,55.828c-2.117,1.361 -1.795,2.628 0.714,2.815L39.806,60.807c2.51,0.188 5.291,2.267 6.18,4.621l10.282,27.208c0.89,2.354 2.195,2.304 2.902,-0.111z" />
+</vector>

src/main/res/layout/about.xml

@@ -9,7 +9,7 @@
         android:layout_width="match_parent"
         android:layout_height="239dp"
         android:scaleType="fitCenter"
-        android:src="@drawable/ic_logo" />
+        android:src="@drawable/ic_logo_color_24dp" />
 
     <TextView
         style="@style/TextLarge"