Large refactoring and new nodes

* Fix node reference when changing elements

* Fix ScriptVariables parsing

* Fix invariant text and niagara types

* Niagara convert nodes

* Move node tests to own files

* More Niagara tests

* Niagara float and smaller fixes

* More Decoding

* More decoding

* WIP

* Float is real

* WIP

* More types and colors

* Test case and small polish

* WIP

* WIP

* Fix niagara script variables merging

* Fix Niagara variables

* Fixing mirrored ExportPath

* Fix Export paths name adjustments

* Simplify arc calculation

* Simplify a bit arc calculation

* source / destionation => origin / target

* Minor refactoring

* Fix switched link position

* Rename some properties for uniformity

* Fix input escape

* Simplify test

* About window

* Dialog backdrop style

* About dialog touches

* Remove dependency and minot improvement

* Light mode

* Fix link location and css small improvement

* Link direction and minor fixes

* Some minor fixes and refactoring

* Refactoring WIP

* Shorting repetitive bits

* More tests

* Simplify linking tests

js/entity/UnknownPinEntity.js

@@ -16,7 +16,7 @@ export default class UnknownPinEntity extends PinEntity {
     static createGrammar() {
         return P.seq(
             // Lookbehind
-            P.reg(new RegExp(`(${Grammar.Regex.Symbol.source}\\s*)\\(\\s*`), 1),
+            P.reg(new RegExp(`(${Grammar.Regex.Symbol.source}\\s*)?\\(\\s*`), 1),
             Grammar.createAttributeGrammar(this).sepBy(Grammar.commaSeparation),
             P.reg(/\s*(?:,\s*)?\)/)
         ).map(([lookbehind, attributes, _2]) => {