And Azenis2021... I updated this yesterday:
Please run
sudo apt update && sudo apt upgrade
Your Vivaldi is using default colors instead of System colors.
- Paste
vivaldi://experiments
in a new tab in Vivaldi. - Check the box to "Allow for using css modifications."
- Open Settings > appearance and check the box to Use Native Windows.
- Go to themes and select Issuna or another that you prefer...
Download this file and then Extract it to your ~/.themes directory:
- In Vivaldi Settings > Appearance "Custom UI Modifications", click "Select Folder" and navigate to your freshly extracted file: ~/.themes/vivaldi-azenis-theme
It should look like "/home/FROGs$USER/.themes/vivaldi-azenis-theme"
Now close Vivaldi and then relaunch it.
Navigate to ~/.config/gtk-3.0/gtk.css and comment out what is in the gtk.css (using the /*commented text goes here*/
tags) or remove it entirely.