diff --git a/src/omni.yml b/src/omni.yml
index 1acd601..cd0211e 100644
--- a/src/omni.yml
+++ b/src/omni.yml
@@ -187,7 +187,7 @@ colors:
   editor.selectionBackground: *SELECTION                                        # Color of the editor selection
   editor.selectionHighlightBackground: *BGLighter                               # Color for regions with the same content as the selection
   editor.inactiveSelectionBackground:                                           # Color of the selection in an inactive editor
-  editor.foldBackground: *BGDark                                                # Background color for folded ranges
+  editor.foldBackground: !alpha [*BGDark, 40]                                   # Background color for folded ranges
 
   editor.wordHighlightBackground: !alpha [ *CYAN, 50 ]                          # Background color of a symbol during read-access, for example when reading a variable
   editor.wordHighlightStrongBackground: !alpha [ *GREEN, 50 ]                   # Background color of a symbol during write-access, for example when writing to a variable