diff --git a/index.html b/index.html
index 2ee387fd..7233c7e6 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,7 @@
 		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 		<title>TurtleStitch</title>
 		<link rel="shortcut icon" href="stitchcode/favicon-32x32.png" type="image/png" />
-    
+
     <script src="src/morphic.js?version=2022-01-28"></script>
     <script src="src/symbols.js?version=2021-03-03"></script>
     <script src="src/widgets.js?version=2021-17-09"></script>
@@ -30,26 +30,26 @@
     <script src="src/FileSaver.min.js?version=2019-06-27"></script>
 
     <!-- three.js -->
-		<script type="text/javascript" src="stitchcode/three-newer/three.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/threee/CanvasRenderer.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/threee/THREE.MeshLine.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/threee/OrbitControls.old.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/threee/Detector.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/three-newer/three.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/threee/CanvasRenderer.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/threee/THREE.MeshLine.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/threee/OrbitControls.old.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/threee/Detector.js?version=2021-12-14"></script>
     <!--<script type="text/javascript" src="stitchcode/three-124/LegacyJSONLoader.js"></script>-->
 
     <script type="text/javascript" src="stitchcode/assets/turtle.js?version=2021-12-14"></script>
     <script type="text/javascript" src="stitchcode/fonts/simplex.js?version=2021-12-14"></script>
 
-		<!-- turtlestitch additions -->
-		<script type="text/javascript" src="stitchcode/turtleShepherd.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/morphic.js?version=2021-12-14"></script>
+    <!-- turtlestitch additions -->
+    <script type="text/javascript" src="stitchcode/turtleShepherd.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/morphic.js?version=2021-12-14"></script>
     <script type="text/javascript" src="stitchcode/symbols.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/blocks.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/threads.js?version=2021-12-14"></script>
-		<script type="text/javascript" src="stitchcode/objects.js?version=2022-03-14"></script>
-		<script type="text/javascript" src="stitchcode/turtlecloud.js?version=2022-06-14"></script>
-		<script type="text/javascript" src="stitchcode/gui.js?version=2022-06-14"></script>
-		<script type="text/javascript" src="stitchcode/store.js?version=2022-06-14"></script>
+    <script type="text/javascript" src="stitchcode/blocks.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/threads.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/objects.js?version=2022-08-25"></script>
+    <script type="text/javascript" src="stitchcode/turtlecloud.js?version=2022-06-14"></script>
+    <script type="text/javascript" src="stitchcode/gui.js?version=2022-08-05"></script>
+    <script type="text/javascript" src="stitchcode/store.js?version=2022-06-14"></script>
 
     <script type="text/javascript">
       var world;
diff --git a/src/objects.js b/src/objects.js
index e18f372b..5a21b648 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -149,7 +149,7 @@ SpriteMorph.prototype.categories =
         'lists',
         'other'
     ];
-
+  
 SpriteMorph.prototype.blockColor = {
     motion : new Color(74, 108, 212),
     looks : new Color(143, 86, 227),
diff --git a/stitchcode/gui.js b/stitchcode/gui.js
index c971079d..0cee7dd3 100644
--- a/stitchcode/gui.js
+++ b/stitchcode/gui.js
@@ -1,4 +1,4 @@
-VERSION="2.7.7"
+VERSION="2.7.8.2"
 
 // get debug mode
 url = new URL(window.location.href);
@@ -1945,8 +1945,8 @@ IDE_Morph.prototype.createCategories = function () {
 
         button.category = category;
         button.corner = 8;
-        button.padding = 0;
-        button.labelShadowOffset = new Point(-1, -1);
+        button.padding = 2;
+        button.labelShadowOffset = new Point(0,0);
         button.labelShadowColor = colors[1];
         button.labelColor = myself.buttonLabelColor;
         if (MorphicPreferences.isFlat) {
@@ -2016,7 +2016,7 @@ IDE_Morph.prototype.createCategories = function () {
             button.setPosition(new Point(
                 l + (col * xPadding + ((col - 1) * buttonWidth)),
                 t + ((row + 1) * yPadding + (row * buttonHeight) + border) +
-                    (i > 7 ? border + 2 : 0)
+                    (i > 9 ? border + 2 : 0)
             ));
         });
 
@@ -2045,7 +2045,7 @@ IDE_Morph.prototype.createCategories = function () {
         } else {
             myself.categories.setHeight(
                 (4 + 1) * yPadding
-                    + 4 * buttonHeight
+                    + 5 * buttonHeight
                     + (more ?
                         (more * (yPadding + buttonHeight) + border + 2)
                             : 0)
@@ -2055,7 +2055,7 @@ IDE_Morph.prototype.createCategories = function () {
     }
 
     SpriteMorph.prototype.categories.forEach(cat => {
-        if (!contains(['lists', 'other'], cat)) {
+        if (!contains(['lists', 'aa'], cat)) {
             addCategoryButton(cat);
         }
     });
diff --git a/stitchcode/objects.js b/stitchcode/objects.js
index 19b4621d..1e5b332b 100644
--- a/stitchcode/objects.js
+++ b/stitchcode/objects.js
@@ -16,6 +16,21 @@ SpriteMorph.prototype.categories =
         'other',
     ];
 
+SpriteMorph.prototype.categories =
+    [
+        'motion',
+        'sensing',
+        'pen',
+        'embroidery',   
+        'control',
+        'operators',
+        'variables',
+        'colors',
+        'other',        
+        'lists',        
+    ];
+    
+
 SpriteMorph.prototype.blockColor = {
     motion : new Color(74, 108, 212),
     pen : new Color(0, 161, 120),
@@ -478,41 +493,42 @@ SpriteMorph.prototype.forwardBy = function (totalsteps, stepsize) {
 
 
 SpriteMorph.prototype.arcRight = function (radius, degrees) {
-    if (degrees > 0) {
-      for (var n=0; n < Math.floor(degrees / 10); n++) {
+    if (degrees > 0) {    
+      for (let n=0; n < Math.floor(degrees / 10.0); n++) {
           this.turn(5);
           this.forward(radius * 0.174532)
           this.turn(5)
       }
       if (degrees % 10 !== 0) {
-          this.turn((degrees % 10)/2);
-          this.forward(((radius * 0.174532) / 10) / (degrees % 10))
-          this.turn((degrees % 10)/2 ) 
+          this.turn((degrees % 10)/2.0);
+          this.forward((radius * 0.174532) / (10.0 / (degrees % 10)))
+          this.turn((degrees % 10)/2.0 ) 
       }
     } else {
-      throw new Error('degrees must be positive');
+      // throw new Error('degrees must be positive');
+      this.arcLeft(radius, Math.abs(degrees))
     }
 };
 
 
 SpriteMorph.prototype.arcLeft = function (radius, degrees) {
     if (degrees > 0) {
-      for (var n=0; n < Math.floor(degrees / 10); n++) {
+      for (let n=0; n < Math.floor(degrees / 10.0); n++) {
           this.turn(-5);
           this.forward(radius * 0.174532)
           this.turn(-5)
       }
       if (degrees % 10 !== 0) {
-          this.turn(-((degrees % 10)/2));
-          this.forward(((radius * 0.174532) / 10) / (degrees % 10))
-          this.turn(-((degrees % 10)/2)) 
+          this.turn(-((degrees % 10)/2.0));
+          this.forward((radius * 0.174532) / (10.0 / (degrees % 10)))
+          this.turn(-((degrees % 10)/2.0)) 
       }
     } else {
-      throw new Error('degrees must be positive');
+      //throw new Error('degrees must be positive');
+      this.arcRight(radius, Math.abs(degrees))
     }
 };
 
-
 SpriteMorph.prototype.forwardSegemensWithEndCheck = function(steps, stepsize) {
   for(i=0;i<steps;i++) {
     if (this.stitchtype == "tatami" && i == 0 && this.stitchoptions.center)