diff --git a/topics/appendix/glossary.md b/topics/appendix/glossary.md
index 34e19b06e..3194c7a42 100644
--- a/topics/appendix/glossary.md
+++ b/topics/appendix/glossary.md
@@ -49,6 +49,9 @@ Intention
 Local History _(LVCS)_
 : A builtin → _Version Control System_ tracking all changes in the project [locally](https://www.jetbrains.com/help/idea/local-history.html).
 
+Look and Feel _(LaF)_
+: Defines the visual appearance and behavior of the user interface; see [Swing Tutorial](https://docs.oracle.com/javase/tutorial/uiswing/lookandfeel/index.html).
+
 ## J
 
 JetBrains Project System _(JPS)_
diff --git a/topics/reference_guide/internal_actions/internal_ui_laf_defaults.md b/topics/reference_guide/internal_actions/internal_ui_laf_defaults.md
index 79a532ce5..07191c70f 100644
--- a/topics/reference_guide/internal_actions/internal_ui_laf_defaults.md
+++ b/topics/reference_guide/internal_actions/internal_ui_laf_defaults.md
@@ -5,6 +5,8 @@
 The <control>LaF Defaults</control> window provides a key-value pair lookup for UI Controls.
 It also allows interactive prototyping of UI Control color changes.
 
+_LaF_ stands for _Look and Feel_, see [Swing Tutorial](https://docs.oracle.com/javase/tutorial/uiswing/lookandfeel/index.html) for more details.
+
 <include src="internal_actions_intro.md" include-id="enable_internal_mode_tip"></include>
 
 ## Opening LaF Defaults