diff --git a/syntax.json b/syntax.json
index 3855703..e4db28a 100644
--- a/syntax.json
+++ b/syntax.json
@@ -140,6 +140,22 @@
       }
     ]
   },
+  {
+    "language": "TypeScript",
+    "markers": [
+      {
+        "type": "line",
+        "pattern": "//"
+      },
+      {
+        "type": "block",
+        "pattern": {
+          "start": "/\\*",
+          "end": "\\*/"
+        }
+      }
+    ]
+  },
   {
     "language": "Dart",
     "markers": [
@@ -189,7 +205,23 @@
     ]
   },
   {
-    "language": "SASS",
+    "language": "Sass",
+    "markers": [
+      {
+        "type": "line",
+        "pattern": "//"
+      },
+      {
+        "type": "block",
+        "pattern": {
+          "start": "/\\*",
+          "end": "\\*/"
+        }
+      }
+    ]
+  },
+  {
+    "language": "Less",
     "markers": [
       {
         "type": "line",