Update SoilHighlight.ts

src/features/soil-editor/SoilTextEditor/SoilHighlight.ts

@@ -25,7 +25,7 @@ export const soilHighlight = {
     pattern: /(\b|\s)(component|enum|extends|function|import|interface|variable|defines|streaming)(\b|\s)/
   },
   "modifier": {
-    pattern: /\b(constant|dynamic|fixed|update)\b/
+    pattern: /\b(constant|dynamic|fixed|update|internal)\b/
   },
   "datatype-full": {
     pattern: /:\s?(boolean|enum|float|int|string|time)\b/,