I want to know How To make LXTerminal of lubuntu 16.04 transparent ?
First install "compton"
apt-get install compton
Then run the following command for testing:
compton --opacity-rule 45:'class_g *= "X-terminal-emulator"'
It's an opacity of 45%, change it to what you like.
Above I typed "X-terminal-emulator", but to get the string you have to type, do the following:
2.) now there should be a crosshair -> klick on your terminal
3.) search for "WM_CLASS(STRING)"
4.) use this in 'class_g *= '...'
You can copy a basic configuration from
/usr/share/doc/compton/compton.sample.conf or here http://duncanlock.net/blog/2013/06/07/how-to-switch-to-compton-for-beautiful-tear-free-compositing-in-xfce/ into the file
~/.config/compton.conf (you must create this if not present)
To make this permanent you can put this command into your profile settings.
After installing compton (see eli's answer)
Edit your ~/.config/compton.conf file to include the following line:
opacity-rule = ["90:class_g *= 'X-terminal-emulator'"]
This will make your terminal's opacity 90%.
compton to your autostart for lubuntu in