The Settings tab is quite extensive in terms of functionality and there are really a lot of things you can customize. Let's try to figure out what is going on there.
This is how the “General” tab looks like:
This is where you can set the basic settings for your panel. In general, the descriptions of the fields reflect the meaning and purpose of this or that setting, so there shouldn't be any problems.
It seems that PWA term needs to be clarified:
PWA - Progressive web application. This way, your platform users can save the application to their phone directly from their browser! In fact, here you can set the PWA settings.
In addition, you can also enable captchas or ask your users for their contact information by simply clicking on a checkbox.
“Colors” tab!
Actually, this tab is for adjusting colors (surprise!). Here you can set the color scheme of your panel not only for the light theme, but also for the dark one. Don't limit your imagination, paint the panel the way you want!
If you want to leave your contacts in social networks, this tab is exactly what you need: