--- original
+++ modified
@@ -42,3 +42,4 @@
 Icon=imagej1
 Categories=Graphics;Science;Biology;Education;ImageProcessing;
 MimeType=image/bmp;image/gif;image/jpeg;image/jpg;image/pjpeg;image/png;image/tiff;image/x-bmp;image/x-fits;image/x-png;image/x-psd;image/x-xbitmap;application/dicom;
+StartupWMClass=ij-ImageJ