diff --git a/libraries/ANSI/CHANGELOG.md b/libraries/ANSI/CHANGELOG.md
index 8baf85a7..928e2b21 100644
--- a/libraries/ANSI/CHANGELOG.md
+++ b/libraries/ANSI/CHANGELOG.md
@@ -6,6 +6,15 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.3.1] - 2023-11-13
+- added experimental functions (to get feedback)
+  - if these work depends on terminal (app) used.
+  - feedback welcome.
+- updated readme.md with above functions
+- add initial version of **supportMatrix.md**
+- updated keywords.txt
+
+
 ## [0.3.0] - 2023-11-09
 - fix missing 0 in normal (#19, Kudos to d0m1n1qu3)
 - fix basic escape strings write length (normal, bold etc  eating one char).
diff --git a/libraries/ANSI/README.md b/libraries/ANSI/README.md
index f35e3409..3b454ced 100644
--- a/libraries/ANSI/README.md
+++ b/libraries/ANSI/README.md
@@ -31,6 +31,7 @@ The **gotoXY(x, y)** has changed as the X and Y coordinates were swapped.
 The code has been updated to explicitly mention which is row and which is column.
 - **gotoXY(uint8_t column, uint8_t row)** 
 
+
 #### Related
 
 https://en.wikipedia.org/wiki/ANSI_escape_code
@@ -42,15 +43,12 @@ Tests are done with
 - TeraTerm 4.102 + 4.106 (VT100, VT202, VT525 mode)
 - Putty 0.71
 
+See **supportMatrix.md** (limited)
+
 Other terminal program's exist so please let me know if yours is working too.
 If not, please open an issue.
 
 
-## Operation
-
-See examples
-
-
 ## Interface
 
 ```cpp
@@ -120,7 +118,7 @@ Note X == row and Y == column. See #13.
 Look into **ansi.h** for experimental functions and notes.
 
 Version 0.1.6 added a number of experimental function that need more testing.
-Some are working with Teraterm, others are unclear of fail.
+Some are working with TeraTerm, others are unclear of fail.
 The user can uncomment these and verify if these work with their terminal.
 
 
@@ -157,6 +155,39 @@ See - https://github.com/RobTillaart/ANSI/issues/9
 As always, constructive feedback is welcome.
 
 
+##### Experimental (working TeraTerm)
+
+These functions need more testing and might work on
+your favourite terminal.
+As always feedback is welcome.
+
+COLUMNS
+- **void set132columns()**
+- **void set80columns()**
+
+MOVE WINDOW
+- **void moveWindowDown()**
+- **void moveWindowUp()**
+
+PRINTING
+- **void printScreen()**
+- **void setPrintingMode(bool on)**
+
+RESET 
+- **void reset()** terminal to initial state
+
+
+##### Experimental (NOT working TeraTerm)
+
+- **void setSmoothScroll()**
+- **void setJumpScroll()**
+- **void printLine()**
+- **void invisible()** to be used for password?
+- **void strikeThrough()**
+- **void setRGBforeground(uint8_t r, uint8_t g, uint8_t b)**
+- **void setRGBbackground(uint8_t r, uint8_t g, uint8_t b)**
+
+
 ## Performance
 
 Since 0.1.5 there is some focus on performance.
@@ -167,6 +198,7 @@ Since 0.2.0 the (internal) print() statements are replaced by write().
 Although it are small improvements these add up.
 
 
+
 ## Future
 
 #### Must
@@ -175,6 +207,7 @@ Although it are small improvements these add up.
   - elaborate interface
   - colour info
 
+
 #### Should
 
 - test experimental functions
@@ -182,10 +215,12 @@ Although it are small improvements these add up.
 - add examples
   - DOS emulator?
   - experimental section
-- evaluate experimental code
+
 
 #### Could
 
+- investigate a class hierarchy?
+  - base class vs more extended class? (footprint?)
 - increase functionality
   - which codes are generic / useful ?
 - investigate performance.
diff --git a/libraries/ANSI/ansi.cpp b/libraries/ANSI/ansi.cpp
index 4da9e58e..b27df3f4 100644
--- a/libraries/ANSI/ansi.cpp
+++ b/libraries/ANSI/ansi.cpp
@@ -1,7 +1,7 @@
 //
 //    FILE: ansi.cpp
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.3.0
+// VERSION: 0.3.1
 // PURPOSE: Arduino library to send ANSI escape sequences
 //    DATE: 2020-04-28
 //     URL: https://github.com/RobTillaart/ANSI
diff --git a/libraries/ANSI/ansi.h b/libraries/ANSI/ansi.h
index 83484552..b1f25b1c 100644
--- a/libraries/ANSI/ansi.h
+++ b/libraries/ANSI/ansi.h
@@ -2,7 +2,7 @@
 //
 //    FILE: ansi.h
 //  AUTHOR: Rob Tillaart
-// VERSION: 0.3.0
+// VERSION: 0.3.1
 // PURPOSE: Arduino library to send ANSI escape sequences
 //    DATE: 2020-04-28
 //     URL: https://github.com/RobTillaart/ANSI
@@ -10,7 +10,7 @@
 
 #include "Arduino.h"
 
-#define ANSI_LIB_VERSION        (F("0.3.0"))
+#define ANSI_LIB_VERSION        (F("0.3.1"))
 
 
 class ANSI : public Stream
@@ -92,8 +92,13 @@ public:
   uint8_t rgb2color(uint8_t r, uint8_t g, uint8_t b);
 
 
+  ///////////////////////////////////////////////////////
+  //
   //  EXPERIMENTAL SECTION
-  //    use at own risk
+  //
+  //  use at own risk
+  //  check if it works on your terminal
+
 
   //  TERMINAL TYPE
   //  - https://github.com/RobTillaart/ANSI/issues/9
@@ -119,16 +124,24 @@ public:
   inline uint16_t screenHeight() { return _height; };
 
 
-  //  check if it works on your terminal
-  //                                                  TERATERM
+  //  COLUMNS
+  //  check if it works on your terminal              TERATERM
   void set132columns()   { print("\033[?3h");  };  //  +
   void set80columns()    { print("\033[?3l");  };  //  +
 
+
+  //  MOVE WINDOW
+  //  check if it works on your terminal              TERATERM
   void moveWindowDown()  { print("\033M");     };  //  +
   void moveWindowUp()    { print("\033D");     };  //  +
 
+
   //  PRINTING
+  //  check if it works on your terminal              TERATERM
   void printScreen()     { print("\033[i");    };  //  +
+  void setPrintingMode(bool on)                    //  +
+       { print( on ? "\e[5i" : "\e[4i"); }
+
 
   //  RESET terminal to initial state
   void reset()           { print("\033c");     };  //  +
@@ -137,20 +150,37 @@ public:
   //  NOT working on TERATERM (or need more testing)
   //  use at own risk
   //  check if it works on your terminal              TERATERM
-  /*
   void setSmoothScroll() { print("\033[?4h");  };  //  -
   void setJumpScroll()   { print("\033[?4l");  };  //  -
+  void printLine()       { print("\033[1i");   };  //  -
 
   //  to be used for password?
   void invisible()       { print("\033[8m");   };  //  -
+  void strikeThrough()   { print("\033[9m");   };  //  -  (mobaXterm works)
 
-  //  PRINTING
-  //  use at own risk
-  //  check if it works on your terminal              TERATERM
-  void printLine()       { print("\033[1i");   };  //  ?
-  void startPrintLog()   { print("\033[4i");   };  //  ?
-  void stopPrintLog()    { print("\033[5i");   };  //  ?
-  */
+
+  //  RGB_COLOR
+  void setRGBforeground(uint8_t r, uint8_t g, uint8_t b)  //  -
+  {
+    print("\033[38;2;");
+    write(r);
+    write(';');
+    write(g);
+    write(';');
+    write(b);
+    print("m");
+  };
+
+  void setRGBbackground(uint8_t r, uint8_t g, uint8_t b)  //  -
+  {
+    print("\033[48;2;");
+    write(r);
+    write(';');
+    write(g);
+    write(';');
+    write(b);
+    print("m");
+  };
 
 
 protected:
@@ -162,7 +192,7 @@ protected:
   void colors4(uint8_t fgcolor, uint8_t bgcolor);
   void color8(uint8_t base, uint8_t color);
 
-  Stream *   _stream;
+  Stream * _stream;
 
   //  screen size parameters
   uint16_t _width = 0;
diff --git a/libraries/ANSI/examples/ansiDemo01/ansiDemo01.ino b/libraries/ANSI/examples/ansiDemo01/ansiDemo01.ino
index c482fe68..6c8e2b08 100644
--- a/libraries/ANSI/examples/ansiDemo01/ansiDemo01.ino
+++ b/libraries/ANSI/examples/ansiDemo01/ansiDemo01.ino
@@ -88,6 +88,29 @@ void setup()
   delay(1000);
   ansi.normal();
 
+  //////////////////////////////////////////////////////////
+  //
+  //  EXPERIMENTAL PART
+  //
+  ansi.clearScreen();
+  ansi.println("Experimental");
+  ansi.invisible();
+  ansi.println("invisible");
+  ansi.normal();
+  ansi.strikeThrough();
+  ansi.println("strikethrough");
+  ansi.normal();
+    
+  // RGB color test
+  ansi.println("Experimental");
+  ansi.setRGBforeground(180, 0, 158);
+  ansi.print("foreground");
+  ansi.normal();
+  ansi.setRGBbackground(180, 0, 158);
+  ansi.println("background");
+  ansi.normal();
+
+
   ansi.println("\ndone...");
 }
 
diff --git a/libraries/ANSI/examples/ansiTestPrint/ansiTestPrint.ino b/libraries/ANSI/examples/ansiTestPrint/ansiTestPrint.ino
new file mode 100644
index 00000000..36ec22fa
--- /dev/null
+++ b/libraries/ANSI/examples/ansiTestPrint/ansiTestPrint.ino
@@ -0,0 +1,78 @@
+//
+//    FILE: ansiTestPrint.ino
+//  AUTHOR: Rob Tillaart
+// PURPOSE: demo
+//     URL: https://github.com/RobTillaart/ANSI
+
+
+#include "ansi.h"
+
+ANSI ansi(&Serial);
+
+char lorem[] = "Lorem ipsum dolor sit amet, \
+consectetuer adipiscing elit. Aenean commodo ligula eget dolor. \
+Aenean massa. Cum sociis natoque penatibus et magnis dis parturient \
+montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, \
+pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. \
+Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu. \
+In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo. \
+Nullam dictum felis eu pede mollis pretium. Integer tincidunt. \
+Cras dapibus. Vivamus elementum semper nisi. \
+Aenean vulputate eleifend tellus. Aenean leo ligula, porttitor eu, \
+consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, \
+viverra quis, feugiat a, tellus. Phasellus viverra nulla ut metus \
+varius laoreet. Quisque rutrum. Aenean imperdiet. Etiam ultricies \
+nisi vel augue. Curabitur ullamcorper ultricies nisi. Nam eget dui.";
+
+
+
+void setup()
+{
+  Serial.begin(115200);
+  ansi.println(__FILE__);
+  ansi.print("ANSI_LIB_VERSION: ");
+  ansi.println(ANSI_LIB_VERSION);
+  ansi.println();
+
+  ansi.println("\nTest invisible");
+  ansi.invisible();
+  ansi.println("INVISIBLE?");
+  ansi.normal();
+  ansi.println("VISIBLE?");
+  delay(1000);
+
+  ansi.println("\nTest printMode");
+  ansi.clearScreen();
+  ansi.setPrintingMode(true);
+  ansi.println(lorem);
+  ansi.setPrintingMode(false);
+  delay(1000);
+
+  ansi.println("\nTest printScreen");
+  ansi.clearScreen();
+  ansi.println("Hello World");
+  ansi.printScreen();
+  ansi.println("done");
+  delay(1000);
+
+  ansi.println("\nTest printLine");
+  ansi.clearScreen();
+  ansi.println("Hello 1");
+  ansi.println("Hello 2");
+  ansi.printLine();
+  ansi.println("Hello 3");
+  ansi.println("Hello 4");
+  ansi.println("done");
+  delay(1000);
+
+
+  ansi.println("\ndone...");
+}
+
+
+void loop()
+{
+}
+
+
+//  -- END OF FILE --
diff --git a/libraries/ANSI/keywords.txt b/libraries/ANSI/keywords.txt
index a972b82e..2736285f 100644
--- a/libraries/ANSI/keywords.txt
+++ b/libraries/ANSI/keywords.txt
@@ -33,6 +33,7 @@ gray2color	KEYWORD2
 grey2color	KEYWORD2
 rgb2color	KEYWORD2
 
+#################################
 # EXPERIMENTAL
 
 deviceType	KEYWORD2
@@ -42,14 +43,26 @@ getScreenSize	KEYWORD2
 screenWidth	KEYWORD2
 screenHeight	KEYWORD2
 
-
 set132columns	KEYWORD2
 set80columns	KEYWORD2
 moveWindowDown	KEYWORD2
 moveWindowUp	KEYWORD2
+
 printScreen	KEYWORD2
+setPrintingMode	KEYWORD2
+
 reset	KEYWORD2
 
+setSmoothScroll	KEYWORD2
+setJumpScroll	KEYWORD2
+printLine	KEYWORD2
+
+invisible	KEYWORD2
+strikeThrough	KEYWORD2
+
+setRGBforeground	KEYWORD2
+setRGBbackground	KEYWORD2
+
 
 # Constants (LITERAL1)
 ANSI_LIB_VERSION	LITERAL1
diff --git a/libraries/ANSI/library.json b/libraries/ANSI/library.json
index cb246e9c..b55397f9 100644
--- a/libraries/ANSI/library.json
+++ b/libraries/ANSI/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/ANSI.git"
   },
-  "version": "0.3.0",
+  "version": "0.3.1",
   "license": "MIT",
   "frameworks": "*",
   "platforms": "*",
diff --git a/libraries/ANSI/library.properties b/libraries/ANSI/library.properties
index 6c2aba33..964aa0a3 100644
--- a/libraries/ANSI/library.properties
+++ b/libraries/ANSI/library.properties
@@ -1,5 +1,5 @@
 name=ANSI
-version=0.3.0
+version=0.3.1
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library to send ANSI escape sequences.
diff --git a/libraries/ANSI/supportMatrix.md b/libraries/ANSI/supportMatrix.md
new file mode 100644
index 00000000..a6a4dada
--- /dev/null
+++ b/libraries/ANSI/supportMatrix.md
@@ -0,0 +1,29 @@
+
+# Support Matrix
+
+- To be updated when time permits.
+- name might change
+
+
+| function      | TeraTerm | puTTY |  miniCom  |
+|:--------------|:--------:|:-----:|:---------:|
+| normal        |     Y    |   Y   |           |
+| bold          |     Y    |   Y   |           |
+| low           |     Y    |   Y   |           |
+| underline     |     Y    |   Y   |           |
+| blink         |     Y    |   Y   |           |
+| blinkFast     |     -    |   -   |           |
+| reverse       |     Y    |   Y   |           |
+| clearScreen   |     Y    |   Y   |           |
+| clearLine     |     Y    |   Y   |           |
+| home          |     Y    |   Y   |           |
+| gotoXY        |     Y    |   Y   |           |
+| cursorUp      |     Y    |   Y   |           |
+| cursorDown    |     Y    |   Y   |           |
+| cursorForward |     Y    |   Y   |           |
+| cursorBack    |     Y    |   Y   |           |
+|               |          |       |           |
+|               |          |       |           |
+|               |          |       |           |
+
+Feel free to add a PR to update the table above.