diff -r 6988973515d2 -r ca23936b455b src/linetypes/quadrilateral.h
--- a/src/linetypes/quadrilateral.h	Wed May 25 20:36:34 2022 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,20 +0,0 @@
-#pragma once
-#include "polygonobject.h"
-
-namespace ldraw
-{
-	class Quadrilateral;
-}
-
-class ldraw::Quadrilateral : public PolygonObject<4>
-{
-public:
-	using PolygonObject<4>::PolygonObject;
-	QString textRepresentation() const override;
-	void getPolygons(std::vector<gl::Polygon>& polygons, GetPolygonsContext* context) const override;
-	void invert(GetPolygonsContext *) override;
-	Type typeIdentifier() const override;
-	QString toLDrawCode() const override;
-	QString iconName() const override;
-	QString typeName() const override;
-};