SOURCE CODE PORTIONS LICENSED VIA MOZILLA PUBLIC LICENSE
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FreePascal / Lazarus : https://www.lazarus-ide.org/
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LazSolutions, Utils unit. Copyright (c) 2011-2013 Silvio Clecio.
The source code can be obtained from https://github.com/franciscoluiz/lazsolutions  
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Virtual Tree: Copyright (c) Mike Lischke.
The source code of the control can be obtained from http://www.soft-gems.net/.
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