diff --git a/syntaxes/arduino.tmLanguage b/syntaxes/arduino.tmLanguage
index dcf0c5e0..4c604b24 100644
--- a/syntaxes/arduino.tmLanguage
+++ b/syntaxes/arduino.tmLanguage
@@ -1,5 +1,6 @@
 <!--
 language grammars reference document: https://manual.macromates.com/en/language_grammars
+Arduino Language reference document: https://www.arduino.cc/en/Reference/HomePage
 -->
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
@@ -23,19 +24,19 @@ language grammars reference document: https://manual.macromates.com/en/language_
 		<array>
 			<dict>
 				<key>match</key>
-				<string>\b(HIGH|LOW|INPUT|OUTPUT|DEC|BIN|HEX|OCT|BYTE|PI|HALF_PI|TWO_PI|LSBFIRST|MSBFIRST|CHANGE|FALLING|RISING|DEFAULT|EXTERNAL|INTERNAL|INTERNAL1V1|INTERNAL2V56|null)\b</string>
+				<string>\b(HIGH|LOW|INPUT|OUTPUT|INPUT_PULLUP|LED_BUILTIN|DEC|BIN|HEX|OCT|BYTE|PI|HALF_PI|TWO_PI|LSBFIRST|MSBFIRST|CHANGE|FALLING|RISING|DEFAULT|EXTERNAL|INTERNAL|INTERNAL1V1|INTERNAL2V56|null)\b</string>
 				<key>name</key>
 				<string>storage.type.cpp.arduino</string>
 			</dict>
 			<dict>
 				<key>match</key>
-				<string>\b(boolean|byte|word)\b</string>
+				<string>\b(boolean|byte|word|string|String|array)\b</string>
 				<key>name</key>
 				<string>storage.cpp.arduino</string>
 			</dict>
 			<dict>
 				<key>match</key>
-				<string>\b(abs|acos|asin|atan|atan2|ceil|constrain|cos|degrees|exp|floor|log|map|max|min|radians|random|randomSeed|round|sin|sq|sqrt|tan|bitRead|bitWrite|bitSet|bitClear|bit|highByte|lowByte|analogReference|analogRead|analogWrite|attachInterrupt|detachInterrupt|delay|delayMicroseconds|digitalWrite|digitalRead|interrupts|millis|micros|noInterrupts|noTone|pinMode|pulseIn|shiftOut|tone|begin|end|read|print|println|available|flush)\b</string>
+				<string>\b(abs|acos|asin|atan|atan2|ceil|constrain|cos|degrees|exp|floor|log|map|max|min|radians|random|randomSeed|round|sin|sq|sqrt|tan|bitRead|bitWrite|bitSet|bitClear|bit|highByte|lowByte|analogReference|analogRead|analogWrite|analogReadResolution|analogWriteResolution|attachInterrupt|detachInterrupt|delay|delayMicroseconds|digitalWrite|digitalRead|interrupts|millis|micros|noInterrupts|noTone|pinMode|pulseIn|shiftIn|shiftOut|tone|begin|end|read|print|println|available|flush)\b</string>
 				<key>name</key>
 				<string>support.function.cpp.arduino</string>
 			</dict>
@@ -47,7 +48,7 @@ language grammars reference document: https://manual.macromates.com/en/language_
 			</dict>
 			<dict>
 				<key>match</key>
-				<string>\b(Serial\d?)\b</string>
+				<string>\b(Serial\d?|Stream|Keyboard|Mouse)\b</string>
 				<key>name</key>
 				<string>support.class.cpp.arduino</string>
 			</dict>