diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b51820..3e8b063 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,8 +12,9 @@
 
 ### Fixed
 
-- (Scala): Make predefined types (Int, Double, etc) distinguishable from unused
+- (Scala): Make predefined types (Int, Double, etc) distinguishable from unused.
 - (UI): Theme informational text.
+- (UI): Theme macOS project tabs.
 
 ### Security
 
diff --git a/generateFlavours/ui.theme.json b/generateFlavours/ui.theme.json
index 728ece1..b5a5fc4 100644
--- a/generateFlavours/ui.theme.json
+++ b/generateFlavours/ui.theme.json
@@ -223,6 +223,19 @@
       "background": "crust",
       "inactiveBackground": "panelBackground"
     },
+    "MainWindow": {
+      "Tab": {
+        "background": "panelBackground",
+        "borderColor": "panelBackground",
+        "foreground": "{{opacityWithHex primaryForeground 0.5}}",
+        "hoverBackground": "{{opacityWithHex panelBackground 0.7}}",
+        "hoverForeground": "{{opacityWithHex primaryForeground 0.5}}",
+        "selectedBackground": "primaryBackground",
+        "selectedForeground": "primaryForeground",
+        "selectedInactiveBackground": "panelBackground",
+        "separatorColor": "panelBackground"
+      }
+    },
     "MemoryIndicator": {
       "allocatedBackground": "surface0",
       "usedBackground": "surface1"