diff --git a/guisynth/CMakeLists.txt b/guisynth/CMakeLists.txt
index 6a3b235..3ffc46e 100644
--- a/guisynth/CMakeLists.txt
+++ b/guisynth/CMakeLists.txt
@@ -34,7 +34,15 @@ install( TARGETS guisynth
          DESTINATION ${CMAKE_INSTALL_BINDIR} )
 
 install( FILES ${CMAKE_CURRENT_SOURCE_DIR}/icon.png
-         DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/128x128
+         DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/128x128/apps
+         RENAME sonivoxeas.png )
+
+install( FILES ${CMAKE_CURRENT_SOURCE_DIR}/icon256.png
+         DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/256x256/apps
+         RENAME sonivoxeas.png )
+
+install( FILES ${CMAKE_CURRENT_SOURCE_DIR}/icon512.png
+         DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/512x512/apps
          RENAME sonivoxeas.png )
 
 install( FILES ${CMAKE_CURRENT_SOURCE_DIR}/guisynth.desktop
diff --git a/guisynth/icon.svg b/guisynth/icon.svg
new file mode 100644
index 0000000..154caa9
--- /dev/null
+++ b/guisynth/icon.svg
@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   viewBox="-147 -70 345 344.99999"
+   version="1.1"
+   id="svg27"
+   width="345"
+   height="345"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#">
+  <defs
+     id="defs31" />
+  <g
+     id="g432">
+    <g
+       fill="#a4c639"
+       id="g17"
+       transform="translate(23.338388,0.9829345)">
+      <use
+         stroke-width="14.4"
+         xlink:href="#b"
+         stroke="#ffffff"
+         id="use2" />
+      <use
+         xlink:href="#a"
+         transform="scale(-1,1)"
+         id="use4" />
+      <g
+         id="a"
+         stroke="#ffffff"
+         stroke-width="7.2">
+        <rect
+           rx="6.5"
+           transform="rotate(29)"
+           height="86"
+           width="13"
+           y="-86"
+           x="14"
+           id="rect6" />
+        <rect
+           id="c"
+           rx="24"
+           height="133"
+           width="48"
+           y="41"
+           x="-143" />
+        <use
+           y="97"
+           x="85"
+           xlink:href="#c"
+           id="use9" />
+      </g>
+      <g
+         id="b">
+        <ellipse
+           cy="41"
+           rx="91"
+           ry="84"
+           id="ellipse12"
+           cx="0" />
+        <rect
+           rx="22"
+           height="182"
+           width="182"
+           y="20"
+           x="-91"
+           id="rect14" />
+      </g>
+    </g>
+    <g
+       stroke="#ffffff"
+       stroke-width="7.2"
+       fill="#ffffff"
+       id="g25"
+       transform="translate(23.338388,0.9829345)">
+      <path
+         d="M -95,44.5 H 95"
+         id="path19" />
+      <circle
+         cx="-42"
+         r="4"
+         id="circle21"
+         cy="0" />
+      <circle
+         cx="42"
+         r="4"
+         id="circle23"
+         cy="0" />
+    </g>
+  </g>
+  <metadata
+     id="metadata137">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <cc:license
+           rdf:resource="http://creativecommons.org/licenses/by-sa/4.0/" />
+      </cc:Work>
+      <cc:License
+         rdf:about="http://creativecommons.org/licenses/by-sa/4.0/">
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Reproduction" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Distribution" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#Notice" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#Attribution" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#DerivativeWorks" />
+        <cc:requires
+           rdf:resource="http://creativecommons.org/ns#ShareAlike" />
+      </cc:License>
+    </rdf:RDF>
+  </metadata>
+</svg>
diff --git a/guisynth/icon256.png b/guisynth/icon256.png
new file mode 100644
index 0000000..6aaf3a9
Binary files /dev/null and b/guisynth/icon256.png differ
diff --git a/guisynth/icon512.png b/guisynth/icon512.png
new file mode 100644
index 0000000..bf7dfc0
Binary files /dev/null and b/guisynth/icon512.png differ