Ubuntu is a debian based linux operating system , Ubuntu Tweak is a software by which we can change the layout & effects of ubuntu. it can perform following functionalities like changing animations, changing opacity of unity panel, adjusting size of the panel , janitor to clean the temporary files or packages.
Steps to install Ubuntu Tweak
1. Press CTRL+ALT+T to open terminal window.
2. Then type following commands line by line
sudo add-apt-repository ppa:tualatrix/ppa sudo apt-get update sudo apt-get install ubuntu-tweak
3. Open Dash & Search For Ubuntu Tweak , Run Ubuntu Tweak.
Ubuntu Tweak Screenshot
If you have any problems in installation or want to ask anything leave a comment below !