sudo apt install gnome-tweaks

 $ sudo apt install gnome-tweaks
[sudo] password for dhwan:
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  libfprint-2-tod1
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
  chrome-gnome-shell gir1.2-handy-0.0 gnome-shell-extension-prefs
Suggested packages:
  chromium | chromium-browser
The following NEW packages will be installed:
  chrome-gnome-shell gir1.2-handy-0.0 gnome-shell-extension-prefs gnome-tweaks
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 88,6 kB of archives.
After this operation, 621 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://id.archive.ubuntu.com/ubuntu focal/universe amd64 chrome-gnome-shell all 10.1-5 [13,9 kB]
Get:2 http://id.archive.ubuntu.com/ubuntu focal/main amd64 gir1.2-handy-0.0 amd64 0.0.13-1 [9.980 B]
Get:3 http://id.archive.ubuntu.com/ubuntu focal-updates/universe amd64 gnome-shell-extension-prefs amd64 3.36.4-1ubuntu1~20.04.2 [6.368 B]
Get:4 http://id.archive.ubuntu.com/ubuntu focal/universe amd64 gnome-tweaks all 3.34.0-2ubuntu1 [58,4 kB]
Fetched 88,6 kB in 3s (27,4 kB/s)       
Selecting previously unselected package chrome-gnome-shell.
(Reading database ... 183509 files and directories currently installed.)
Preparing to unpack .../chrome-gnome-shell_10.1-5_all.deb ...
Unpacking chrome-gnome-shell (10.1-5) ...
Selecting previously unselected package gir1.2-handy-0.0:amd64.
Preparing to unpack .../gir1.2-handy-0.0_0.0.13-1_amd64.deb ...
Unpacking gir1.2-handy-0.0:amd64 (0.0.13-1) ...
Selecting previously unselected package gnome-shell-extension-prefs.
Preparing to unpack .../gnome-shell-extension-prefs_3.36.4-1ubuntu1~20.04.2_amd6
4.deb ...
Unpacking gnome-shell-extension-prefs (3.36.4-1ubuntu1~20.04.2) ...
Selecting previously unselected package gnome-tweaks.
Preparing to unpack .../gnome-tweaks_3.34.0-2ubuntu1_all.deb ...
Unpacking gnome-tweaks (3.34.0-2ubuntu1) ...
Setting up gir1.2-handy-0.0:amd64 (0.0.13-1) ...
Setting up chrome-gnome-shell (10.1-5) ...
Setting up gnome-shell-extension-prefs (3.36.4-1ubuntu1~20.04.2) ...
Setting up gnome-tweaks (3.34.0-2ubuntu1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu3) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
Processing triggers for bamfdaemon (0.5.3+18.04.20180207.2-0ubuntu2) ...
Rebuilding /usr/share/applications/bamf-2.index...