diff --git a/AppKit/CPTextView/CPParagraphStyle.j b/AppKit/CPTextView/CPParagraphStyle.j
index 2e2f3f6b9..8f7176550 100644
--- a/AppKit/CPTextView/CPParagraphStyle.j
+++ b/AppKit/CPTextView/CPParagraphStyle.j
@@ -56,6 +56,12 @@ var kDefaultTabInterval = 28.0;
     return [self initWithTextAlignment:aType location:aLocation options:nil];
 }
 
+// Added to resolve the unrecognized selector exception in the RTF producer
+- (CPTabStopType)tabStopType
+{
+    return _alignment;
+}
+
 - (BOOL)isEqual:(id)other
 {
     if (self === other) return YES;
@@ -217,8 +223,6 @@ var _sharedDefaultParagraphStyle = nil;
 @end
 
 
-// MARK: - CPMutableParagraphStyle Implementation
-
 // MARK: - CPMutableParagraphStyle Implementation
 
 @implementation CPMutableParagraphStyle : CPParagraphStyle
diff --git a/AppKit/CPTextView/CPTextView.j b/AppKit/CPTextView/CPTextView.j
index 916549d58..21ffa7bc3 100644
--- a/AppKit/CPTextView/CPTextView.j
+++ b/AppKit/CPTextView/CPTextView.j
@@ -3049,8 +3049,9 @@ var _CPCopyPlaceholder = '-';
     // Intercept problematic keys before the browser acts.
     _CPNativeInputField.addEventListener('keydown', function(e) {
 
-        if (e.key === 'Enter' || (e.key === 'Backspace' && _CPNativeInputField.innerHTML === '')) {
+        if (e.key === 'Tab' || e.key === 'Enter' || (e.key === 'Backspace' && _CPNativeInputField.innerHTML === '')) {
             // Prevent browser default action:
+            // - 'Tab': Prevents browser focus navigation, allowing Cappuccino key bindings (like option-tab or tab) to work.
             // - 'Enter': Prevents inserting <div><br></div>.
             // - 'Backspace' on empty: Prevents inserting junk characters on iPadOS.
             e.preventDefault();
diff --git a/Tests/Manual/CPTextView/AppController.j b/Tests/Manual/CPTextView/AppController.j
index 128eb6c23..7abb6d277 100755
--- a/Tests/Manual/CPTextView/AppController.j
+++ b/Tests/Manual/CPTextView/AppController.j
@@ -287,7 +287,7 @@
     var elegantForeground = [CPColor colorWithRed:0.18 green:0.24 blue:0.35 alpha:1.0]; // Slate Blue
     var elegantBackground = [CPColor colorWithRed:0.92 green:0.95 blue:0.98 alpha:1.0]; // Soft Sky Blue tint
     
-    [_textView insertText:[[CPAttributedString alloc] initWithString:@"Fusce\n"
+    [_textView insertText:[[CPAttributedString alloc] initWithString:@"My Headline with blue background\n"
                                                           attributes:[CPDictionary dictionaryWithObjects:[centeredParagraph, [CPFont boldFontWithName:@"Arial" size:18], elegantForeground, elegantBackground]
                                                                                                  forKeys:[CPParagraphStyleAttributeName, CPFontAttributeName, CPForegroundColorAttributeName, CPBackgroundColorAttributeName]]]];
 
@@ -323,13 +323,6 @@
 
     [theWindow orderFront:self];
     [CPMenu setMenuBarVisible:YES];
-
-    console.log([[CPFont systemFontOfSize:12] cssString])
-    var context = document.createElement("canvas").getContext("2d");
-    context.font = '12px Arial, sans-serif';
-    var testingText = 'A A A A A A A A';
-    console.log(ROUND(context.measureText(testingText).width));
-    console.log(ROUND([CPPlatformString sizeOfString:testingText withFont:[CPFont systemFontOfSize:12] forWidth:NULL].width));
 }
 
 - (void)makeRTF:(id)sender