Idea Summary
There are cases when the Help tab in the Builder needs to show some visual elements. Since it is limited to text only at the moment, a workaround would be to add links to the right section of the Universal Theme Sample App where possible (or the Oracle APEX Documentation).
Use Case
Button positions within a region are a classic example of such visual help. A simple link, added to the Help tab would be a good addition: https://oracleapex.com/ords/r/apex_pm/ut/standard-region
Preferred Solution (Optional)
Adding links in the Help tab to Universal Theme Sample App where possible (or the Oracle APEX Documentation).