diff -Naur unison.orig/trunk/desktop unison/trunk/desktop
--- unison.orig/trunk/desktop	2020-08-03 19:48:30.632951385 +0000
+++ unison/trunk/desktop	2020-08-03 19:49:03.363414634 +0000
@@ -7,5 +7,5 @@
 Terminal=false
 Type=Application
 Categories=GTK;Application;Network;
-Icon=unison.png
+Icon=unison
 StartupNotify=true
diff -Naur unison.orig/trunk/PKGBUILD unison/trunk/PKGBUILD
--- unison.orig/trunk/PKGBUILD	2020-08-03 19:48:30.632951385 +0000
+++ unison/trunk/PKGBUILD	2020-08-03 19:59:38.292579597 +0000
@@ -17,8 +17,8 @@
         'desktop')
 sha256sums=('a2efcbeab651be6df69cc9b253011a07955ecb91fb407a219719451197849d5e'
             '2a971cf17e0a7303e99a793829e2b7b03533d17041e3b2ebba53555a5bd62284'
-	    '7c97ac4a13d6865dad0b447d519566dba3adaa777d2c2aa2014d4e5d7d8c0c13'
-            'b497b1c23cceb8967e9c3f9a39720e3029d370304ae410795121224f96c234a3')
+            '7c97ac4a13d6865dad0b447d519566dba3adaa777d2c2aa2014d4e5d7d8c0c13'
+            '2dc5c53386cc065706e6c901d1a1a205808e449dc9676320d1de7a5dd673e174')
 
 options=('!makeflags')
 
@@ -49,7 +49,10 @@
 	install -m755 unison-* "${pkgdir}"/usr/bin
 	ln -s unison-text "${pkgdir}"/usr/bin/unison
 
-	install -d "${pkgdir}"/usr/share/{pixmaps,applications}
-	install -m644 icons/U.32x32x16m.png "${pkgdir}/usr/share/pixmaps/${pkgname}.png"
-	install -m644 ../desktop "${pkgdir}/usr/share/applications/${pkgname}.desktop"
+	install -Dm644 ../desktop "${pkgdir}/usr/share/applications/${pkgname}.desktop"
+	install -Dm644 icons/U.svg "${pkgdir}/usr/share/icons/hicolor/scalable/apps/${pkgname}.svg"
+
+	for i in 16 24 32 48 256; do
+		install -Dm644 icons/U.${i}x${i}x16m.png "${pkgdir}/usr/share/icons/hicolor/${i}x${i}/apps/${pkgname}.png"
+	done
 }