diff --git a/modules/lib/default.nix b/modules/lib/default.nix
index 2d69174..67a80c9 100644
--- a/modules/lib/default.nix
+++ b/modules/lib/default.nix
@@ -55,6 +55,11 @@ in
   # a convenience to deal with the main flavor naming
   getKebabTheme = flavor: if (flavor == "main") then "rose-pine" else "rose-pine-${flavor}";
 
+  # string -> string
+  # convert flavor to full theme name in snake case
+  # a convenience to deal with the main flavor naming
+  getSnakeTheme = flavor: if (flavor == "main") then "rose_pine" else "rose_pine_${flavor}";
+
   # string -> string
   # this capitalizes the first letter in a string,
   # which is sometimes needed in order to format