diff --git a/issue-labels.md b/issue-labels.md
index 860dea5..4c062fa 100644
--- a/issue-labels.md
+++ b/issue-labels.md
@@ -1,4 +1,4 @@
-There are 2 kinds of labels in the issue system, _issue types_ and _workflow status_.
+There are 3 kinds of labels in the issue system, _issue types_, _workflow status_, _UI scope_.
 
 Issue types
 ---
@@ -10,8 +10,14 @@ Issue types
 Workflow status
 ---
 
-* **ready:** This ticket is ready for implementation. For a feature, that means that we have a clear specification of what to do. For a bug, that means that we have clear steps to reproduce.
+* **ready:** This issue is ready for implementation. For a feature, that means that we have a clear specification of what to do. For a bug, that means that we have clear steps to reproduce.
 * **mentored:** This ticket is seen as a good introductory task (that is, it should be relatively easy to complete). If you're interested getting involved in the project, it's likely a good place to start. If you need guidance, don't hesitate call for mentors in the [New Contributor issue](https://github.com/hsoft/dupeguru/issues/300).
 * **hold:** Some external feedback is needed to either continue working on the issue, or to close it. Most of the time, it's a bug that can't be reproduced. It needs more details from people who experience the bug so it can be reproduced.
 
-If there aren't any workflow status tag, it means that the ticket is still in "discussion" mode and not yet ready to implement.
\ No newline at end of file
+If there aren't any workflow status tag, it means that the issue is still in "discussion" mode and not yet ready to implement.
+
+UI Scope
+---
+
+* **qt:** This issue affects the Qt UI layer.
+* **cocoa:** This issue affects the Cocoa UI layer.
\ No newline at end of file