diff --git a/img/boosted.svg b/img/boosted.svg
deleted file mode 100644
index 7472386b..00000000
--- a/img/boosted.svg
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
-  <path
-     d="M 3.7033898,2.5508475 6,5 H 4 v 6.349874 C 3.9978062,11.766594 4.1753909,11.975633 4.6261562,12 h 3.4077421 l -0.025432,-1.545142 1.5463604,1.600873 c 0.5174923,0.535735 0.4814593,1.411546 -0.076298,1.970562 L 8.039123,15.624262 8,14 H 4.0269132 C 2.8202842,13.979992 2.0239697,13.221832 2,12.021026 V 5 H 0 L 2.3898306,2.5932203 C 2.7981432,2.198722 3.2806083,2.1519552 3.7033898,2.5508475 Z M 7.9819172,2 H 12.00883 C 13.27311,1.9987847 13.952061,2.5865479 14,3.9432301 V 11 h 2 l -2.254237,2.254237 c -0.422373,0.454494 -0.950419,0.456361 -1.415255,0.0085 L 10,11 h 2 V 4.470564 C 11.997141,4.0566741 11.865895,3.9908781 11.457527,4 H 8.0298567 l -0.078698,1.5143026 c 0,0 -0.7302906,-0.7898264 -1.4873627,-1.607871 C 6.0091032,3.415119 5.950808,2.7247094 6.4726816,2.1227079 7.1186649,1.3775409 7.9652831,0.48422118 7.9652831,0.48422118 Z" />
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diff --git a/src/store/timeline.js b/src/store/timeline.js
index f892a411..d6c26a82 100644
--- a/src/store/timeline.js
+++ b/src/store/timeline.js
@@ -2,6 +2,7 @@
  * @copyright Copyright (c) 2018 Julius Härtl <jus@bitgrid.net>
  *
  * @author Julius Härtl <jus@bitgrid.net>
+ * @author Jonas Sulzer <jonas@violoncello.ch>
  *
  * @license GNU AGPL version 3 or any later version
  *