Now I found it out. Zorin 18.1 Lite uses CSD by default. This is the file where it is set up, in combination with enabled "dialogs use header" at settings>appearance>settings:
Now I found it out. Zorin 18.1 Lite uses CSD by default. This is the file where it is set up, in combination with enabled "dialogs use header" at settings>appearance>settings:
