The record about the beautification process after installing ubuntu 1804
Before reinstalling the system forget how to do, or better record the following
Software and Updates
Set download servers aliyun
sudo apt install update
sudo apt install gnome-tweak-tool
sudo apt install gnome-shell-extensions
You can install plug-ins directly from the browser, access may be some slow
sudo apt install chrome-gnome-shell
It is to install dash to dock
sudo apt install gnome-shell-extension-dashtodock
Or from
https://extensions.gnome.org/#
Here mainly to record what's dash to dock bug
In the dash to dock in settings -> Appearance -> Custom transparency
The default setting is "default", the general effect
If instead the "dynamic" or "adaptive", both sides of the black bar may dock
"Fixed" Forget it
If, unfortunately, a black bar
To dash to dock homepage https://micheleg.github.io/dash-to-dock/development.html reset the settings below
Try to reset the extension settings to their default values with the command
dconf reset /org/gnome/shell/extensions/dash-to-dock/
After reset it, first select the current "fixed" Well
About removing the top bar
Ubuntu is a top panel
There are two extensions
hide top bar
hide top panel
Temporarily not encounter any bug
The other is the firefox browser
Version quantum 68
Open the menu -> Custom -> remove the tick title bar
Theme class, after setting look
https://www.gnome-look.org/browse/ord/plinged/