What are White list and Black List modes in AFWall+ - Android

Let's Talk about different modes in AFWALL + in Android.

The Simple rule of thumb:
White list mode = Pin point the Good apps which you want to allow. Rest will not be allowed.

Blacklist mode = Pin point only the Bad Apps which you do not want to allow. Rest will be allowed.

Do not forget to Enable the firewall and apply the rules once you are done.