diff --git a/forge-gui-mobile/src/forge/Forge.java b/forge-gui-mobile/src/forge/Forge.java
index 4cbb9b327db..ef88c70b228 100644
--- a/forge-gui-mobile/src/forge/Forge.java
+++ b/forge-gui-mobile/src/forge/Forge.java
@@ -38,9 +38,10 @@ import forge.util.Utils;
 
 import java.io.File;
 import java.io.FileFilter;
+import java.util.ArrayDeque;
 import java.util.ArrayList;
+import java.util.Deque;
 import java.util.List;
-import java.util.Stack;
 
 public class Forge implements ApplicationListener {
     public static final String CURRENT_VERSION = "1.6.33.001";
@@ -57,7 +58,7 @@ public class Forge implements ApplicationListener {
     private static KeyInputAdapter keyInputAdapter;
     private static boolean exited;
     private static int continuousRenderingCount = 1; //initialize to 1 since continuous rendering is the default
-    private static final Stack<FScreen> screens = new Stack<>();
+    private static final Deque<FScreen> Dscreens = new ArrayDeque<>();
     private static boolean textureFiltering = false;
     private static boolean destroyThis = false;
     public static String extrawide = "default";
@@ -259,13 +260,13 @@ public class Forge implements ApplicationListener {
     }
 
     public static boolean onHomeScreen() {
-        return screens.size() == 1;
+        return Dscreens.size() == 1;
     }
 
     public static void back() {
         if(destroyThis && isLandscapeMode())
             return;
-        if (screens.size() < 2) {
+        if (Dscreens.size() < 2) {
             exit(false); //prompt to exit if attempting to go back from home screen
             return;
         }
@@ -273,8 +274,8 @@ public class Forge implements ApplicationListener {
             @Override
             public void run(Boolean result) {
                 if (result) {
-                    screens.pop();
-                    setCurrentScreen(screens.lastElement());
+                    Dscreens.removeFirst();
+                    setCurrentScreen(Dscreens.getFirst());
                 }
             }
         });
@@ -282,12 +283,12 @@ public class Forge implements ApplicationListener {
 
     //set screen that will be gone to on pressing Back before going to current Back screen
     public static void setBackScreen(final FScreen screen0, boolean replace) {
-        screens.remove(screen0); //remove screen from previous position in navigation history
-        int index = screens.size() - 1;
+        Dscreens.remove(screen0); //remove screen from previous position in navigation history
+        int index = Dscreens.size() - 1;
         if (index > 0) {
-            screens.add(index, screen0);
+            Dscreens.addLast(screen0);
             if (replace) { //remove previous back screen if replacing back screen
-                screens.remove(index - 1);
+                Dscreens.removeFirst();
             }
         }
     }
@@ -349,7 +350,7 @@ public class Forge implements ApplicationListener {
         if (currentScreen == screen0) { return; }
 
         if (currentScreen == null) {
-            screens.push(screen0);
+            Dscreens.addFirst(screen0);
             setCurrentScreen(screen0);
             return;
         }
@@ -358,11 +359,11 @@ public class Forge implements ApplicationListener {
             @Override
             public void run(Boolean result) {
                 if (result) {
-                    if (replaceBackScreen && !screens.isEmpty()) {
-                        screens.pop();
+                    if (replaceBackScreen && !Dscreens.isEmpty()) {
+                        Dscreens.removeFirst();
                     }
-                    if (screens.peek() != screen0) { //prevent screen being its own back screen
-                        screens.push(screen0);
+                    if (Dscreens.peekFirst() != screen0) { //prevent screen being its own back screen
+                        Dscreens.addFirst(screen0);
                     }
                     setCurrentScreen(screen0);
                 }
@@ -505,7 +506,7 @@ public class Forge implements ApplicationListener {
             currentScreen.onClose(null);
             currentScreen = null;
         }
-        screens.clear();
+        Dscreens.clear();
         graphics.dispose();
         SoundSystem.instance.dispose();
         try {
diff --git a/forge-gui-mobile/src/forge/Graphics.java b/forge-gui-mobile/src/forge/Graphics.java
index a5df4f53ca7..f339a8af981 100644
--- a/forge-gui-mobile/src/forge/Graphics.java
+++ b/forge-gui-mobile/src/forge/Graphics.java
@@ -19,7 +19,9 @@ import forge.assets.FSkinFont;
 import forge.toolbox.FDisplayObject;
 import forge.util.Utils;
 import forge.util.TextBounds;
-import java.util.Stack;
+
+import java.util.ArrayDeque;
+import java.util.Deque;
 
 public class Graphics {
     private static final int GL_BLEND = GL20.GL_BLEND;
@@ -27,7 +29,7 @@ public class Graphics {
 
     private final SpriteBatch batch = new SpriteBatch();
     private final ShapeRenderer shapeRenderer = new ShapeRenderer();
-    private final Stack<Matrix4> transforms = new Stack<>();
+    private final Deque<Matrix4> Dtransforms = new ArrayDeque<>();
     private final Vector3 tmp = new Vector3();
     private float regionHeight;
     private Rectangle bounds;
@@ -70,7 +72,7 @@ public class Graphics {
         batch.flush(); //must flush batch to prevent other things not rendering
 
         Rectangle clip = new Rectangle(adjustX(x), adjustY(y, h), w, h);
-        if (!transforms.isEmpty()) { //transform position if needed
+        if (!Dtransforms.isEmpty()) { //transform position if needed
             tmp.set(clip.x, clip.y, 0);
             tmp.mul(batch.getTransformMatrix());
             float minX = tmp.x;
@@ -121,7 +123,7 @@ public class Graphics {
 
         final Rectangle parentBounds = bounds;
         bounds = new Rectangle(parentBounds.x + displayObj.getLeft(), parentBounds.y + displayObj.getTop(), displayObj.getWidth(), displayObj.getHeight());
-        if (!transforms.isEmpty()) { //transform screen position if needed by applying transform matrix to rectangle
+        if (!Dtransforms.isEmpty()) { //transform screen position if needed by applying transform matrix to rectangle
             updateScreenPosForRotation(displayObj);
         }
         else {
@@ -542,7 +544,7 @@ public class Graphics {
     }
 
     private void startShape(ShapeType shapeType) {
-        if (!transforms.isEmpty()) {
+        if (!Dtransforms.isEmpty()) {
             //must copy matrix before starting shape if transformed
             shapeRenderer.setTransformMatrix(batch.getTransformMatrix());
         }
@@ -624,7 +626,7 @@ public class Graphics {
 
     public void startRotateTransform(float originX, float originY, float rotation) {
         batch.end();
-        transforms.add(0, new Matrix4(batch.getTransformMatrix().idt())); //startshape is using this above as reference
+        Dtransforms.addFirst(new Matrix4(batch.getTransformMatrix().idt())); //startshape is using this above as reference
         batch.getTransformMatrix().idt().translate(adjustX(originX), adjustY(originY, 0), 0).rotate(Vector3.Z, rotation).translate(-adjustX(originX), -adjustY(originY, 0), 0);
         batch.begin();
     }
@@ -632,7 +634,7 @@ public class Graphics {
     public void endTransform() {
         batch.end();
         shapeRenderer.setTransformMatrix(batch.getTransformMatrix().idt());
-        transforms.pop();
+        Dtransforms.removeFirst();
         batch.getTransformMatrix().idt(); //reset
         shapeRenderer.getTransformMatrix().idt(); //reset
         batch.begin();