diff --git a/internal/styles/aluminum/aluminum.tss b/internal/styles/aluminum/aluminum.tss
index 17b06c6..fb3d0b5 100644
--- a/internal/styles/aluminum/aluminum.tss
+++ b/internal/styles/aluminum/aluminum.tss
@@ -150,7 +150,8 @@ $BorderOuterShadow    = #a4afc0                         / 0 1 1 0;
 }
 
 *.Checkbox[checked] {
-	// TODO
+	Texture:     "assets/checkbox-checked.png";
+	TextureMode: center;
 }
 
 *.MenuItem {
diff --git a/internal/styles/aluminum/assets/checkbox-checked.png b/internal/styles/aluminum/assets/checkbox-checked.png
new file mode 100644
index 0000000..b9753ac
Binary files /dev/null and b/internal/styles/aluminum/assets/checkbox-checked.png differ