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+/*
+	sketchbook - A collection of small graphical programs/sketches.
+	https://notabug.org/namark/sketchbook
+	https://git.sr.ht/~namark/sketchbook
+	https://git.qoto.org/namark/sketchbook
+	https://github.com/namark/sketchbook
+
+	Copyright (C) 2018-2020 respective authors/contributors
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/