https://bugzilla.mozilla.org/show_bug.cgi?id=150876
150876 - Trees do not render contents inside GroupBox
RESOLVED (jvarga) in Core - XUL. Last updated 2008-07-31.
do nottreesrendercontentsinside
https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.groupbox?view=netframework-4.8.1&redirectedfrom=MSDN
GroupBox Class (System.Windows.Forms) | Microsoft Learn
Represents a Windows control that displays a frame around a group of controls with an optional caption.
class systemwindows formsgroupboxmicrosoftlearn
https://bugzilla.mozilla.org/show_bug.cgi?id=121125
121125 - Pref should have 'Cascading Style Sheets' in the groupbox label
VERIFIED (daniel) in SeaMonkey - Preferences. Last updated 2004-11-22.
cascading style sheetspref
https://developer.apple.com/documentation/swiftui/GroupBox
GroupBox | Apple Developer Documentation
A stylized view, with an optional label, that visually collects a logical grouping of content.
apple developergroupboxdocumentation