diff --git a/codec2talkie/build.gradle b/codec2talkie/build.gradle
index 52b70bd..40ddb5b 100644
--- a/codec2talkie/build.gradle
+++ b/codec2talkie/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "com.radio.codec2talkie"
         minSdkVersion 23
         targetSdkVersion 30
-        versionCode 154
-        versionName "1.54"
+        versionCode 155
+        versionName "1.55"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/codec2talkie/src/main/java/com/radio/codec2talkie/protocol/aprs/tools/AprsSymbolTable.java b/codec2talkie/src/main/java/com/radio/codec2talkie/protocol/aprs/tools/AprsSymbolTable.java
index 8cd2264..ae385e0 100644
--- a/codec2talkie/src/main/java/com/radio/codec2talkie/protocol/aprs/tools/AprsSymbolTable.java
+++ b/codec2talkie/src/main/java/com/radio/codec2talkie/protocol/aprs/tools/AprsSymbolTable.java
@@ -5,6 +5,7 @@ import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.graphics.drawable.BitmapDrawable;
+import android.media.audiofx.DynamicsProcessing;
 import android.util.DisplayMetrics;
 import android.widget.ImageView;
 
@@ -110,7 +111,7 @@ public class AprsSymbolTable {
 
         Bitmap icon = _secondaryTable.get(symbolIconIndex);
         Bitmap overlayIcon = _overlayTable.get(overlayIconIndex);
-        Bitmap bmOverlay = Bitmap.createBitmap(icon.getWidth(), icon.getHeight(), null);
+        Bitmap bmOverlay = Bitmap.createBitmap(icon.getWidth(), icon.getHeight(), Bitmap.Config.ARGB_8888);
         bmOverlay.setDensity(DisplayMetrics.DENSITY_DEFAULT);
 
         Canvas canvas = new Canvas(bmOverlay);
@@ -165,7 +166,7 @@ public class AprsSymbolTable {
         ArrayList<Bitmap> secondaryTableIcons = Load(imageViewSecondary, _selectorIconDim, _selectorIconDim, _cntWidth, _cntHeight);
         primaryTableIcons.addAll(secondaryTableIcons);
 
-        Bitmap bmOverlay = Bitmap.createBitmap(_selectorIconDim*cntX, _selectorIconDim*cntY*2, null);
+        Bitmap bmOverlay = Bitmap.createBitmap(_selectorIconDim*cntX, _selectorIconDim*cntY*2, Bitmap.Config.ARGB_8888);
         bmOverlay.setDensity(DisplayMetrics.DENSITY_DEFAULT);
         Canvas canvas = new Canvas(bmOverlay);
         Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG);
diff --git a/codec2talkie/src/main/java/com/radio/codec2talkie/storage/station/StationItem.java b/codec2talkie/src/main/java/com/radio/codec2talkie/storage/station/StationItem.java
index 22955f9..e74f03b 100644
--- a/codec2talkie/src/main/java/com/radio/codec2talkie/storage/station/StationItem.java
+++ b/codec2talkie/src/main/java/com/radio/codec2talkie/storage/station/StationItem.java
@@ -168,7 +168,7 @@ public class StationItem {
         int height = bitmapIcon.getHeight() + bounds.height();
 
         // create overlay bitmap
-        Bitmap bitmap = Bitmap.createBitmap(width, height, null);
+        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
         bitmap.setDensity(DisplayMetrics.DENSITY_DEFAULT);
 
         // draw APRS icon
diff --git a/codec2talkie/src/main/java/com/radio/codec2talkie/tools/BitmapTools.java b/codec2talkie/src/main/java/com/radio/codec2talkie/tools/BitmapTools.java
index 483462e..d87e7c2 100644
--- a/codec2talkie/src/main/java/com/radio/codec2talkie/tools/BitmapTools.java
+++ b/codec2talkie/src/main/java/com/radio/codec2talkie/tools/BitmapTools.java
@@ -18,7 +18,7 @@ public class BitmapTools {
         Rect bounds = new Rect();
         paint.getTextBounds(text, 0, text.length(), bounds);
 
-        Bitmap bitmap = Bitmap.createBitmap(bounds.width(), bounds.height(), null);
+            Bitmap bitmap = Bitmap.createBitmap(bounds.width(), bounds.height(), Bitmap.Config.ARGB_8888);
         bitmap.setDensity(DisplayMetrics.DENSITY_DEFAULT);
 
         Canvas canvas = new Canvas(bitmap);