twinbasic · KubaO · May 25, 2026 · May 25, 2026 · May 25, 2026 · May 25, 2026
diff --git a/docs/IDE/Menu/Debug.md b/docs/IDE/Menu/Debug.md
@@ -25,9 +25,9 @@ permalink: /tB/IDE/Project/Menu/Debug
 
 ## Debugger Options
 
-![Debugger Options | Debug Menu](Images/Menu_Debug_DebuggerOptions.png "Debugger Options | Debug Menu")
+![Debugger Options - Debug Menu](Images/Menu_Debug_DebuggerOptions.png "Debugger Options - Debug Menu")
 
 - Break On All Errors
 - ✔ Allow Breakpoints (Debuggable)
 
-![Debugger Options | Debug Menu](Images/Menu_Debug_DebuggerOptions_2.png "Debugger Options | Debug Menu")
+![Debugger Options - Debug Menu](Images/Menu_Debug_DebuggerOptions_2.png "Debugger Options - Debug Menu")
diff --git a/docs/IDE/Menu/Help.md b/docs/IDE/Menu/Help.md
@@ -30,7 +30,7 @@ permalink: /tB/IDE/Project/Menu/Help
 
 ## About twinBASIC...
 
-![About | Help Menu](Images/Menu_Help_About.png "About | Help Menu")
+![About - Help Menu](Images/Menu_Help_About.png "About - Help Menu")
 
 ## Licence Agreement...
 

diff --git a/docs/IDE/Menu/Window.md b/docs/IDE/Menu/Window.md
@@ -35,7 +35,7 @@ permalink: /tB/IDE/Project/Menu/Window
 ![Window Panel Layouts Default Menu](Images/Menu_Window_PanelLayouts_ManagePanelLayouts_Default.png "Window Panel Layouts Default Menu")
 
 <details>
-<summary>&lt;DEFAULT&gt; (built-in)</summary>
+<summary markdown=span>&lt;DEFAULT&gt; (built-in)</summary>
 
 ```json
 {
@@ -149,7 +149,7 @@ permalink: /tB/IDE/Project/Menu/Window
 ![Window Panel Layouts Fullscreen Menu](Images/Menu_Window_PanelLayouts_ManagePanelLayouts_Fullscreen.png "Window Panel Layouts Fullscreen Menu")
 
 <details>
-<summary>&lt;FULLSCREEN&gt; (built-in)</summary>
+<summary markdown=span>&lt;FULLSCREEN&gt; (built-in)</summary>
 
 ```json
 {
@@ -226,7 +226,7 @@ permalink: /tB/IDE/Project/Menu/Window
 ![Window Keyboard Shortcuts - Manage Keyboard Shortcuts Menu](Images/Menu_Window_KeyboardShortcuts_ManageKeyboardShortcuts_1.png "Window Keyboard Shortcuts - Manage Keyboard Shortcuts Menu")
 
 <details>
-<summary>Options</summary>
+<summary markdown=span>Options</summary>
 
 ```json
 {

diff --git a/docs/Miscellaneous/FAQs.md b/docs/Miscellaneous/FAQs.md
diff --git a/docs/Reference/Core/Option.md b/docs/Reference/Core/Option.md
@@ -173,7 +173,7 @@ When a module contains **Option Private Module**, the public parts, for example,
 > [!NOTE]
 > **Option Private** is a more verbose way of making modules or classes private to the package. An equivalent effect in a less verbose fashion is obtained with [**Private**](Private) statement as follows:
 >
-> ``` vb
+> ```tb
 > Private Module MyModule
 >     ' ...
 > End Module 

diff --git a/docs/Reference/Glossary.md b/docs/Reference/Glossary.md
@@ -588,7 +588,7 @@ A file in a twinBASIC project that can contain bitmaps, text strings, or other d
 
 ## RGB
 
-A color value system used to describe colors as a mixture of red (R), green (G), and blue (B). The color is defined as a set of three integers (R, G, B) where each integer ranges from 0&ndash;255. A value of 0 indicates a total absence of a color component; a value of 255 indicates the highest intensity of a color component. See [**RGB**](Modules/Information/RGB) and [**RGBA**](Modules/Information/RGBA).
+A color value system used to describe colors as a mixture of red \(R\), green (G), and blue (B). The color is defined as a set of three integers (R, G, B) where each integer ranges from 0&ndash;255. A value of 0 indicates a total absence of a color component; a value of 255 indicates the highest intensity of a color component. See [**RGB**](Modules/Information/RGB) and [**RGBA**](Modules/Information/RGBA).
 
 ## run time
 

diff --git a/docs/_plugins/twinbasic.rb b/docs/_plugins/twinbasic.rb
@@ -156,7 +156,18 @@ def self.builtins
       end
 
       state :dotted do
-        mixin :whitespace
+        # The :dotted state handles `obj.member` (member access). It
+        # should NOT span newlines: in twinBASIC a statement ends at
+        # the newline unless explicitly continued with `_`, so an
+        # identifier on the NEXT line is not a member-access
+        # continuation and should be lexed by the normal root rules
+        # (which would, for instance, recognise `Exit Sub` as one
+        # Keyword instead of `Name + Keyword`). The original mixin
+        # `:whitespace` rule pushed `:bol` on `\n`, leaving `:dotted`
+        # on the stack and mis-classifying the next line's first
+        # identifier.
+        rule %r/_[ \t]*\n[ \t]*/, Punctuation::LineContinuation
+        rule %r/[^\S\n]+/, Text
         rule %r/#{id}[%&@!#$]?/, Name, :pop!
         rule(//) { pop! }
       end
@@ -177,6 +188,18 @@ def self.builtins
       end
 
       state :attrargs do
+        # Multi-line attribute argument lists use the standard `&` /
+        # `+` concat-and-line-continuation idiom inside the parens:
+        #
+        #   [Description("first part " & _
+        #                "second part")]
+        #
+        # The original state lacked rules for `&` (concat operator)
+        # and the `_[ \t]*\n` line continuation, so they fell through
+        # to the empty-match `(//) { pop! }` -- which popped out of
+        # `:attrargs` prematurely, leaving the closing `)]` to be
+        # tokenised in the wrong state (the `]` ended up as Error).
+        rule %r/_[ \t]*\n[ \t]*/, Punctuation::LineContinuation
         rule %r/[^\S\n]+/, Text
         rule %r/\)/, Punctuation, :pop!
         rule %r/,/, Punctuation
@@ -186,6 +209,10 @@ def self.builtins
         rule %r/&O[0-7]+(_[0-7]+)*[%&!#@]?/i, Num::Integer
         rule %r/&B[01]+(_[01]+)*[%&!#@]?/i, Num::Integer
         rule %r/\d+[%&!#@]?/, Num::Integer
+        rule(
+          %r(&=|[*]=|/=|\\=|\^=|\+=|-=|<<=|>>=|<<|>>|:=|<=|>=|<>|[-&*/\\^+=<>]),
+          Operator
+        )
         rule id do |m|
           key = m[0].downcase
           if (kc = self.class.keyword_constants[key])
-Original file line number
+Diff line change
@@ Expand Up @@
     ## RGB
-    A color value system used to describe colors as a mixture of red (R), green (G), and blue (B). The color is defined as a set of three integers (R, G, B) where each integer ranges from 0&ndash;255. A value of 0 indicates a total absence of a color component; a value of 255 indicates the highest intensity of a color component. See [**RGB**](Modules/Information/RGB) and [**RGBA**](Modules/Information/RGBA).
+    A color value system used to describe colors as a mixture of red \(R\), green (G), and blue (B). The color is defined as a set of three integers (R, G, B) where each integer ranges from 0&ndash;255. A value of 0 indicates a total absence of a color component; a value of 255 indicates the highest intensity of a color component. See [**RGB**](Modules/Information/RGB) and [**RGBA**](Modules/Information/RGBA).
     ## run time
@@ Expand Down @@