Shouldn't `package.json` include BSD-3-Clause as one of the licenses?

Xeltalliv/simple3D contains code under a BSD-3-Clause license, so technically it should be noted in the package metadata. I assume this was just forgotten.

@GarboMuffin

yes it should

It was probably forgotten even earlier considering Pen Plus V5 also uses that library.

extensions/extensions/penplus.js

Lines 69 to 104 in 60d8a9b

    
               /*! 
        
                * 4x4 matrix operation code is from https://webglfundamentals.org/webgl/resources/m4.js 
        
                * We have made some changes: 
        
                *  - Fixed type errors 
        
                *  - Changed code formatting 
        
                *  - Removed unused functions 
        
                * 
        
                * Copyright 2021 GFXFundamentals. 
        
                * All rights reserved. 
        
                * 
        
                * Redistribution and use in source and binary forms, with or without 
        
                * modification, are permitted provided that the following conditions are 
        
                * met: 
        
                * 
        
                *     * Redistributions of source code must retain the above copyright 
        
                * notice, this list of conditions and the following disclaimer. 
        
                *     * Redistributions in binary form must reproduce the above 
        
                * copyright notice, this list of conditions and the following disclaimer 
        
                * in the documentation and/or other materials provided with the 
        
                * distribution. 
        
                *     * Neither the name of GFXFundamentals. nor the names of his 
        
                * contributors may be used to endorse or promote products derived from 
        
                * this software without specific prior written permission. 
        
                * 
        
                * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
        
                * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
        
                * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
        
                * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
        
                * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
        
                * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
        
                * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
        
                * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
        
                * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
        
                * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
        
                * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
        
                */

	/*!
	* 4x4 matrix operation code is from https://webglfundamentals.org/webgl/resources/m4.js
	* We have made some changes:
	* - Fixed type errors
	* - Changed code formatting
	* - Removed unused functions
	*
	* Copyright 2021 GFXFundamentals.
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met:
	*
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following disclaimer
	* in the documentation and/or other materials provided with the
	* distribution.
	* * Neither the name of GFXFundamentals. nor the names of his
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/