Do not forget the svg

data/icons/tomahawk-icon.svg

@@ -1,14 +1,14 @@
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-    <title>tomahawk-icon</title>
+    <title>tomahawk-icon-512x512</title>
     <description>Created with Sketch (http://www.bohemiancoding.com/sketch)</description>
     <defs></defs>
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