Apps now have typed settings. These are configured in the app-configuration like you would configure any other entity. You can access these values as follows:
- [App:Settings:ListSize] or [App:Resources:IntroText]
- @App.Settings.ListSize or App.Resources.IntroText
Guideline when to use Setting vs. Resources
In general, settings are configuration values. For example, how many of something to show, filter-parameters and similar. Settings usually don't change from language to language (usually don't but they can).
Resources are used for labels, introduction texts, copyrights and images - things than look a bit like content, but are used site-wide and often vary from language to language.