Headings for AdwPreferencesGroup lacks styling

[ztefn]

What Happened?

See for example the screenshot below of the preferences window for the default web browser in elementary OS called "Web". It contains headings labeled Web Content, Homepage and Search Engines. Issues with these headings:

• They are not styled as headings with a thicker font weight
• They lack any bottom margin which make them directly touch the box below

Steps to Reproduce

1. Open "Web" application
2. Open "Preferences" from the gear menu or press Ctrl+,

Expected Behavior

https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/class.PreferencesGroup.html

OS Version

8.x (Circe)

Session Type

Classic Session (X11, This is the default)

Software Version

Latest release (I have run all updates)

Log Output

Hardware Info

No response