diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9333b13..f5e8afd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,6 +129,12 @@ install (TARGETS ${PROJECT_NAME} DESTINATION ${CMAKE_INSTALL_BINDIR})
 install (FILES LICENSE DESTINATION ${CMAKE_INSTALL_DOCDIR})
 install (DIRECTORY contrib DESTINATION ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME})
 install (DIRECTORY info DESTINATION ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME})
+if (WITH_X11)
+	install (FILES ${PROJECT_NAME}.svg
+		DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps)
+	install (FILES ${PROJECT_NAME}.desktop
+		DESTINATION ${CMAKE_INSTALL_DATADIR}/applications)
+endif ()
 
 # Generate documentation from text markup
 find_program (ASCIIDOCTOR_EXECUTABLE asciidoctor)
@@ -176,6 +182,33 @@ foreach (page ${project_MAN_PAGES})
 		DESTINATION "${CMAKE_INSTALL_MANDIR}/man${CMAKE_MATCH_1}")
 endforeach ()
 
+# Testing
+option (BUILD_TESTING "Build tests" OFF)
+if (BUILD_TESTING)
+	enable_testing ()
+
+	find_program (xmlwf_EXECUTABLE xmlwf)
+	find_program (xmllint_EXECUTABLE xmllint)
+	foreach (xml ${PROJECT_NAME}.svg)
+		if (xmlwf_EXECUTABLE)
+			add_test (test-xmlwf-${xml} ${xmlwf_EXECUTABLE}
+				${PROJECT_SOURCE_DIR}/${xml})
+		endif ()
+		if (xmllint_EXECUTABLE)
+			add_test (test-xmllint-${xml} ${xmllint_EXECUTABLE} --noout
+				${PROJECT_SOURCE_DIR}/${xml})
+		endif ()
+	endforeach ()
+
+	find_program (dfv_EXECUTABLE desktop-file-validate)
+	if (dfv_EXECUTABLE)
+		foreach (df ${PROJECT_NAME}.desktop)
+			add_test (test-dfv-${df} ${dfv_EXECUTABLE}
+				${PROJECT_SOURCE_DIR}/${df})
+		endforeach ()
+	endif ()
+endif ()
+
 # CPack
 set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Terminal/X11 MPD client")
 set (CPACK_PACKAGE_VENDOR "Premysl Eric Janouch")
diff --git a/nncmpp.desktop b/nncmpp.desktop
new file mode 100644
index 0000000..4ba2668
--- /dev/null
+++ b/nncmpp.desktop
@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Name=nncmpp
+GenericName=MPD client
+Icon=nncmpp
+Exec=nncmpp %U
+StartupNotify=false
+# Not registering a MimeType, because that depends on MPD.
+Categories=AudioVideo;Audio;Player;
diff --git a/nncmpp.svg b/nncmpp.svg
new file mode 100644
index 0000000..8960736
--- /dev/null
+++ b/nncmpp.svg
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg version="1.0" width="48" height="48" viewBox="0 0 48 48"
+   xmlns="http://www.w3.org/2000/svg">
+  <g transform="translate(5 4) scale(2 2)">
+    <!-- From x11_icon_play, with a stroke for contrast. -->
+    <path d="M 0 0 20 10 0 20 Z" stroke="#eee" stroke-width="2" fill="#000"
+       stroke-linejoin="round" />
+  </g>
+</svg>