Linux icon (Ubuntu)

androidstudio.desktop

[Desktop Entry]
Type=Application
Terminal=true
Exec=/opt/android-studio/bin/studio.sh
Name=Android Studio
Icon=/opt/android-studio/bin/studio.png

chrome.desktop

[Desktop Entry]
Type=Application
Terminal=false
Exec=/usr/bin/google-chrome
Name=Google Chrome
Icon=/usr/share/icons/hicolor/48x48/apps/google-chrome.png

eclipse.desktop

[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Name=Java EE - Eclipse 
Icon=eclipse
Path=/opt/eclipse-jee-2020-06/eclipse
Exec=/opt/eclipse-jee-2020-06/eclipse/eclipse
Exec2=/opt/jdk1.8.0_25/bin/java -Dosgi.requiredJavaVersion=1.6 -XX:MaxPermSize=256m -Xms40m -Xmx512m -jar /opt/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar -os linux -ws gtk -arch x86_64 -showsplash /opt/eclipse//plugins/org.eclipse.platform_4.3.0.v20130605-2000/splash.bmp -launcher /opt/eclipse/eclipse -name Eclipse --launcher.library /opt/eclipse//plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20130521-0416/eclipse_1506.so -startup /opt/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar --launcher.appendVmargs -exitdata 56800f -product org.eclipse.epp.package.jee.product -vm /opt/jdk1.8.0_25/bin/java -vmargs -Dosgi.requiredJavaVersion=1.6 -XX:MaxPermSize=256m -Xms40m -Xmx512m -jar /opt/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar
StartupNotify=false
StartupWMClass=Eclipse
OnlyShowIn=Unity;
X-UnityGenerated=true

filezilla.desktop

[Desktop Entry]
Type=Application
Terminal=false
Exec=/opt/FileZilla3/bin/filezilla
Name=Filezilla
Icon=/opt/FileZilla3/share/icons/hicolor/32x32/apps/filezilla.png

IntelliJ.desktop

[Desktop Entry]
Type=Application
Terminal=true
Exec=/opt/idea-IC-203.7717.56/bin/idea.sh
Name=IntelliJ
Icon=/opt/idea-IC-203.7717.56/bin/idea.png

teams.desktop

[Desktop Entry]
Type=Application
Terminal=false
Exec=/usr/bin/teams
Name=MS Teams
Icon=/usr/share/pixmaps/teams.png

thunderbird.desktop

[Desktop Entry]
Encoding=UTF-8
Name=Mozilla Thunderbird Mail/News
Comment=Read/Write Mail/News with Mozilla Thunderbird
GenericName=Mail Client
Exec=/opt/thunderbird-78.8.1/thunderbird/thunderbird %u
Terminal=false
X-MultipleArgs=false
Type=Application
Icon=/opt/thunderbird-78.8.1/thunderbird/chrome/icons/default/default64.png
Categories=Application;Network;Email;
MimeType=message/rfc822;x-scheme-handler/mailto;
StartupNotify=true
Name[es]=Cliente de correo y noticias Thunderbird
Name[cs]=Poštovní klient Thunderbird
Name[ca]=Client de correu Thunderbird
Name[fi]=Thunderbird-sähköposti
Name[fr]=Messagerie Thunderbird
Name[hu]=Thunderbird levelezőkliens
Name[pl]=Klient poczty Thunderbird
Name[pt_BR]=Thunderbird
Name[sv]=E-postklienten Thunderbird
Comment[es]=Lea y escriba correos y noticias con Mozilla Thunderbird
Comment[ca]=Llegiu i escriviu correu
Comment[cs]=Čtení a psaní pošty
Comment[de]=Emails lesen und verfassen
Comment[fi]=Lue ja kirjoita sähköposteja
Comment[fr]=Lire et écrire des courriels
Comment[hu]=Levelek írása és olvasása a Thunderbirddel
Comment[it]=Leggere e scrivere email
Comment[ja]=メールの読み書き
Comment[pl]=Czytanie i wysyłanie e-maili
Comment[pt_BR]=Ler e escrever suas mensagens
Comment[sv]=Läs och skriv e-post
GenericName[hu]=Levelezőkliens

zoom.desktop

[Desktop Entry]
Type=Application
Terminal=false
Exec=/usr/bin/zoom
Name=Zoom
Icon=Zoom