it's a matter of spelling

users/(default)/Toolbars/MainMenu/MainMenu.buttons.model

@@ -3121,7 +3121,7 @@
 				},
 				"tooltip": {
 					"type": "string",
-					"value": "Create a new formalism."
+					"value": "create a new formalism"
 				},
 				"code": {
 					"type": "code",