diff --git a/CMakeLists.txt b/CMakeLists.txt
index c727415..eed48fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -105,8 +105,8 @@ if(UNIX AND NOT APPLE)
         install(SCRIPT install.cmake)
     else()
         install(FILES space.nouspiro.tenmon.desktop DESTINATION "${CMAKE_INSTALL_DATADIR}/applications")
-        install(FILES resources/space.nouspiro.tenmon.png DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/64x64/apps")
-        install(FILES resources/space.nouspiro.tenmon_128.png DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/128x128/apps" RENAME space.nouspiro.tenmon.png)
+        install(FILES resources/space.nouspiro-tenmon.png DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/64x64/apps")
+        install(FILES resources/space.nouspiro-tenmon_128.png DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/128x128/apps" RENAME space.nouspiro-tenmon.png)
     endif()
     install(FILES space.nouspiro.tenmon.metainfo.xml DESTINATION "${CMAKE_INSTALL_DATADIR}/metainfo")
 endif(UNIX AND NOT APPLE)
diff --git a/README b/README
index e8895bf..d88013c 100644
--- a/README
+++ b/README
@@ -2,22 +2,25 @@ FITS/XISF image viewer with multithreaded image loading
 
 To get all dependencies install these packages
 
-    sudo apt install qt6-base-dev qt6-declarative-dev libqt6opengl6-dev libraw-dev libexif-dev libcfitsio-dev libgsl-dev wcslib-dev cmake
+    sudo apt install qt6-base-dev qt6-declarative-dev libqt6opengl6-dev libraw-dev libexif-dev libcfitsio-dev libgsl-dev wcslib-dev cmake libzstd-dev
 
 on OpenSUSE
 
-    sudo zypper install gsl-devel exif-devel libraw-devel wcslib-devel libqt6-qtbase-devel
+    sudo zypper install gsl-devel libexif-devel libraw-devel wcslib-devel qt6-base-devel qt6-qml-devel libzstd-devel
 
 MacOS X
 
-To compile on MacOS install XCode first. Then install homebrew in x86_64 mode
-with "arch -i x86_64". Building on native ARM is not supported.
+To compile on MacOS install XCode first. Then install homebrew.
 
     homebrew install qt6 libraw cfitsio libexif libgsl wcslib
 
 You may need to set CMAKE_PREFIX_PATH for Qt6 so CMake can find them.
 
-Then to build run standard cmake
+First run this command to get libXISF updated
+
+    git submodule update --init --recursive
+
+Then to build run standard cmake sequence
 
     cmake -B build -S .
     cmake --build build
diff --git a/about/tenmon b/about/tenmon
index 84e6f91..cbfa644 100644
--- a/about/tenmon
+++ b/about/tenmon
@@ -1,5 +1,5 @@
 <table><tr>
-<td style="padding-right:10px"><img src=":/space.nouspiro.tenmon.png"></td>
+<td style="padding-right:10px"><img src=":/space.nouspiro-tenmon.png"></td>
 <td><h3>Tenmon</h3>
 Tenmon is FITS/XISF image viewer and converter. It also index FITS keywords.<br>
 v@GITVERSION@ Copyright © 2022 Dušan Poizl<br><br>
diff --git a/install.cmake b/install.cmake
index fb78fc9..3aecfc6 100644
--- a/install.cmake
+++ b/install.cmake
@@ -1,5 +1,5 @@
 find_program(XDG-DESKTOP-MENU_EXECUTABLE xdg-desktop-menu)
 find_program(XDG-ICON-RESOURCE_EXECUTABLE xdg-icon-resource)
-execute_process(COMMAND ${XDG-DESKTOP-MENU_EXECUTABLE} install --novendor space.nouspiro.tenmon.desktop WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
-execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --novendor --size 64 resources/space.nouspiro.tenmon.png space.nouspiro.tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
-execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --novendor --size 128 resources/space.nouspiro.tenmon_128.png space.nouspiro.tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-DESKTOP-MENU_EXECUTABLE} install space.nouspiro-tenmon.desktop WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --size 64 resources/space.nouspiro-tenmon.png space.nouspiro-tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --size 128 resources/space.nouspiro-tenmon_128.png space.nouspiro-tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
diff --git a/main.cpp b/main.cpp
index 381feb0..36fdc0e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -21,7 +21,7 @@ int main(int argc, char *argv[])
     QApplication a(argc, argv);
     a.setOrganizationName("nou");
     a.setApplicationName("Tenmon");
-    a.setWindowIcon(QIcon(":/space.nouspiro.tenmon.png"));
+    a.setWindowIcon(QIcon(":/space.nouspiro-tenmon.png"));
 
     QTranslator translator;
     QTranslator translator2;
diff --git a/resources/resources.qrc b/resources/resources.qrc
index 5737b4a..ead97ca 100644
--- a/resources/resources.qrc
+++ b/resources/resources.qrc
@@ -3,7 +3,6 @@
         <file>invert.png</file>
         <file>nuke.png</file>
         <file>bayer.png</file>
-        <file>space.nouspiro.tenmon.png</file>
         <file>nuke_a.png</file>
         <file>../about/tenmon</file>
         <file>../translations/tenmon_en.qm</file>
@@ -16,14 +15,15 @@
         <file>bggr.png</file>
         <file>grbg.png</file>
         <file>gbrg.png</file>
+        <file>space.nouspiro-tenmon.png</file>
     </qresource>
-    <qresource lang="en" prefix="/">
+    <qresource prefix="/" lang="en">
         <file alias="help">../about/help_en</file>
     </qresource>
-    <qresource lang="sk" prefix="/">
+    <qresource prefix="/" lang="sk">
         <file alias="help">../about/help_sk</file>
     </qresource>
-    <qresource lang="fr" prefix="/">
+    <qresource prefix="/" lang="fr">
         <file alias="help">../about/help_fr</file>
     </qresource>
 </RCC>
diff --git a/resources/space.nouspiro.tenmon.png b/resources/space.nouspiro-tenmon.png
similarity index 100%
rename from resources/space.nouspiro.tenmon.png
rename to resources/space.nouspiro-tenmon.png
diff --git a/resources/space.nouspiro.tenmon_128.png b/resources/space.nouspiro-tenmon_128.png
similarity index 100%
rename from resources/space.nouspiro.tenmon_128.png
rename to resources/space.nouspiro-tenmon_128.png
diff --git a/space.nouspiro.tenmon.desktop b/space.nouspiro-tenmon.desktop
similarity index 88%
rename from space.nouspiro.tenmon.desktop
rename to space.nouspiro-tenmon.desktop
index 0249660..4f9c153 100644
--- a/space.nouspiro.tenmon.desktop
+++ b/space.nouspiro-tenmon.desktop
@@ -1,7 +1,7 @@
 [Desktop Entry]
 Type=Application
 Exec=tenmon %U
-Icon=space.nouspiro.tenmon
+Icon=space.nouspiro-tenmon
 Comment=FITS Image viewer
 Name=Tenmon
 Categories=Graphics;2DGraphics;RasterGraphics;Viewer;Science;Astronomy
diff --git a/space.nouspiro.tenmon.metainfo.xml b/space.nouspiro.tenmon.metainfo.xml
index fc40cc9..4e614ec 100644
--- a/space.nouspiro.tenmon.metainfo.xml
+++ b/space.nouspiro.tenmon.metainfo.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
     <id>space.nouspiro.tenmon</id>
-    <launchable type="desktop-id">space.nouspiro.tenmon.desktop</launchable>
+    <launchable type="desktop-id">space.nouspiro-tenmon.desktop</launchable>
     <name>Tenmon</name>
     <summary>FITS/XISF image viewer, converter, index and search</summary>
     <developer id="nouspiro.space">