mkdir -p ~/.local/share/applications
cd ~/.local/share/applications
gedit keepass-2.48.1.desktop
[Desktop Entry]
Categories=Security;
Name=Keepass-2.48.1
Comment=Password Manager
Exec=mono /home/user/KeePass-2.48.1/KeePass.exe
Icon=/home/user/Softwares/KeePass_icon.png
MimeType=x-application/kdbx
StartupNotify=true
Type=Application