customize to panel ubuntu 18.04 code example

Example: ubuntu dock setting

$ gsettings set org.gnome.shell.extensions.dash-to-dock extend-height false
$ gsettings set org.gnome.shell.extensions.dash-to-dock dock-position BOTTOM
$ gsettings set org.gnome.shell.extensions.dash-to-dock transparency-mode FIXED
$ gsettings set org.gnome.shell.extensions.dash-to-dock dash-max-icon-size 64
$ gsettings set org.gnome.shell.extensions.dash-to-dock unity-backlit-items true