Finalized documentation

README.md

@@ -207,9 +207,23 @@ TBD
 
 ### Preset 4 - Water Color
 
-TBD
+This preset allows users to modify independently every effect from the JUCE plugin. Thanks to the opacity of the pen, the users can select which effect they want to modify, and then the X and Y axis of the pad are mapped to the two controls of each effect. The following figure shows the effects parameters and the value range.
+
+![JUCE Effects](documentation/rsc/VST3_Parameters.png)
+
+
+Depending on the opacity of the pen, the users can select which one of the effects they want to modify,  as follows:
+
+| Opacity value     | Effect              |
+| :---------------  | :------------------ |
+| From 0.00 to 0.20 | EQ                  |
+| From 0.20 to 0.40 | Distortion          |
+| From 0.40 to 0.60 | Chorus              |
+| From 0.60 to 0.80 | Delay               |
+| From 0.80 to 1.00 | Reverb              |
+
 
 
 # 5) Graphical User Interface
 
-The Graphical User Interface (GUI) has been developed using Processing. To ensure the ineraction between SuperCollider et Processing, OSC messages are sent through the loopback network interface of the computer, using the port 57122. (WIP)
+The Graphical User Interface (GUI) has been developed using Processing. To ensure the interaction between SuperCollider et Processing, OSC messages arriving from the tablet are forwarded from SuperCollider to Processing through the loopback network interface of the computer, using the port 57122. This allows to see how the effects are modified live.