Use macOS-specific application icon

NEXTCLOUD.cmake

@@ -5,7 +5,14 @@ set( APPLICATION_DOMAIN     "nextcloud.com" )
 set( APPLICATION_VENDOR     "Nextcloud GmbH" )
 set( APPLICATION_UPDATE_URL "https://updates.nextcloud.org/client/" CACHE STRING "URL for updater" )
 set( APPLICATION_HELP_URL   "" CACHE STRING "URL for the help menu" )
-set( APPLICATION_ICON_NAME  "Nextcloud" )
+
+if(APPLE AND APPLICATION_NAME STREQUAL "Nextcloud" AND EXISTS "${CMAKE_SOURCE_DIR}/theme/colored/Nextcloud-macOS-icon.svg")
+    set( APPLICATION_ICON_NAME "Nextcloud-macOS" )
+    message("Using macOS-specific application icon: ${APPLICATION_ICON_NAME}")
+else()
+    set( APPLICATION_ICON_NAME "${APPLICATION_SHORTNAME}" )
+endif()
+
 set( APPLICATION_ICON_SET   "SVG" )
 set( APPLICATION_SERVER_URL "" CACHE STRING "URL for the server to use. If entered, the UI field will be pre-filled with it" )
 set( APPLICATION_SERVER_URL_ENFORCE ON ) # If set and APPLICATION_SERVER_URL is defined, the server can only connect to the pre-defined URL