With some fiddling around, I just found out how to easily do it. No commands.
If you have this same problem, know that we don't really have a "PROBLEM", because just deleting everything with the specific app's name from the icon theme folder will work...
BUT you have to delete the "icon-theme.cache" file and logout (or change to another icon theme and back ...
I found the solution. Sharing here if anybody's interested:
mkdir -p $HOME/.themes/light/gnome-shell
cp /usr/share/gnome-shell/theme/gnome-classic.css ./gnome-shell.css
Then Tweaks have to be opened and the “User themes” extension activated (if it wasn't before). Now we need to close Tweaks. Then we have to open it ...
After a long time, and switching to manjaro too, i came upon this problem again, however now i have a solution
you will need to edit 3 different files, replace Blobmoji with whatever Emoji-Font you want to use
first file: /etc/fonts/conf.d/60-generic.conf
find the part of the file where it will list off all emoij font options, something like
The file that may concern is ubuntu.css which is located in usr/share/gnome-shell/theme.So you have to edit the file .First i will suggest you to take a backup of the file
sudo cp /usr/share/gnome-shell/theme/ubuntu.css /usr/share/gnome-shell/theme/ubuntu.css.bak
Now edit : file the directive named lockDialogGroup in the ubuntu.css file .
now change the ...
Rudy Vissers' answer works well, but will affect all elements that may have an outline. This causes the outline to also appear on the checkbox and radio elements, such as the browser prompt to download a file.
The solution is to apply the css only to the buttons:
I confirm it is a pain to make a difference between the buttons.
I did what was suggested increase the highlighted button bezel thickness (GNOME)
Add the following to the file gtk.css (make a backup if unsure):
It seems your GTK theme got switched to Adwaita, the default GTk theme for GNOME (Ubuntu doesn't use this one by default, 18.04 has Ambiance and Radiance). So you just need to change your GTK theme to something you like.
To do that first install (GNOME) Tweaks by running the following command in Terminal
sudo apt install gnome-tweaks
Then launch Tweaks ...
Just install gnome-session. Then log into it (for example, "GNOME on Xorg").
Then enable Ubuntu extensions:
gnome-shell-extension-tool -e email@example.com
gnome-shell-extension-tool -e firstname.lastname@example.org
And change wallpaper for lock screen.
Make sure you have the Qogir theme in /usr/share/themes/. Then use the following command to run an application
sudo -H GTK_THEME=Qogir <app name>
In general if the theme supports variants (light/dark), you can use the following
sudo -H GTK_THEME=<Theme-Name>:<Theme-variant> <app name>
It is recommended installing the GNOME Tweaks application, formerly known as GNOME Tweak Tool, to change your theme.
To install it graphically, open the Ubuntu Software application, search for “tweaks,” and then install the GNOME Tweaks application.
To install GNOME Tweaks from a terminal window, run the following command instead:
sudo apt install gnome-...