Use a single tab field separator in keywords.txt

Each field of keywords.txt is separated by a single true tab. When you use multiple tabs it causes the field to be interpreted as empty. On Arduino IDE 1.6.5 and newer an empty KEYWORD_TOKENTYPE causes the default editor.function.style coloration to be used (as with KEYWORD2, KEYWORD3, LITERAL2). On Arduino IDE 1.6.4 and older it causes the keyword to not be recognized for any special coloration.

Reference:
https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification#keywords

Author: per1234

keywords.txt

@@ -6,44 +6,44 @@
 # Datatypes (KEYWORD1)
 #######################################
 
-Firmata				KEYWORD1	Firmata
-callbackFunction		KEYWORD1	callbackFunction
+Firmata	KEYWORD1	Firmata
+callbackFunction	KEYWORD1	callbackFunction
 systemResetCallbackFunction	KEYWORD1	systemResetCallbackFunction
-stringCallbackFunction		KEYWORD1	stringCallbackFunction
-sysexCallbackFunction		KEYWORD1	sysexCallbackFunction
+stringCallbackFunction	KEYWORD1	stringCallbackFunction
+sysexCallbackFunction	KEYWORD1	sysexCallbackFunction
 
 #######################################
 # Methods and Functions (KEYWORD2)
 #######################################
 
-begin				KEYWORD2
-printVersion			KEYWORD2
-blinkVersion			KEYWORD2
-printFirmwareVersion		KEYWORD2
-setFirmwareVersion		KEYWORD2
+begin	KEYWORD2
+printVersion	KEYWORD2
+blinkVersion	KEYWORD2
+printFirmwareVersion	KEYWORD2
+setFirmwareVersion	KEYWORD2
 setFirmwareNameAndVersion	KEYWORD2
-available			KEYWORD2
-processInput			KEYWORD2
-isParsingMessage		KEYWORD2
-parse				KEYWORD2
-sendAnalog			KEYWORD2
-sendDigital			KEYWORD2
-sendDigitalPort			KEYWORD2
-sendString			KEYWORD2
-sendSysex			KEYWORD2
-getPinMode			KEYWORD2
-setPinMode			KEYWORD2
-getPinState			KEYWORD2
-setPinState			KEYWORD2
-attach				KEYWORD2
-detach				KEYWORD2
-write				KEYWORD2
+available	KEYWORD2
+processInput	KEYWORD2
+isParsingMessage	KEYWORD2
+parse	KEYWORD2
+sendAnalog	KEYWORD2
+sendDigital	KEYWORD2
+sendDigitalPort	KEYWORD2
+sendString	KEYWORD2
+sendSysex	KEYWORD2
+getPinMode	KEYWORD2
+setPinMode	KEYWORD2
+getPinState	KEYWORD2
+setPinState	KEYWORD2
+attach	KEYWORD2
+detach	KEYWORD2
+write	KEYWORD2
 sendValueAsTwo7bitBytes	KEYWORD2
-startSysex			KEYWORD2
-endSysex			KEYWORD2
-writePort			KEYWORD2
-readPort			KEYWORD2
-disableBlinkVersion		KEYWORD2
+startSysex	KEYWORD2
+endSysex	KEYWORD2
+writePort	KEYWORD2
+readPort	KEYWORD2
+disableBlinkVersion	KEYWORD2
 
 
 #######################################
@@ -54,37 +54,37 @@ FIRMATA_MAJOR_VERSION	LITERAL1
 FIRMATA_MINOR_VERSION	LITERAL1
 FIRMATA_BUGFIX_VERSION	LITERAL1
 
-MAX_DATA_BYTES		LITERAL1
+MAX_DATA_BYTES	LITERAL1
 
-DIGITAL_MESSAGE		LITERAL1
-ANALOG_MESSAGE		LITERAL1
-REPORT_ANALOG		LITERAL1
-REPORT_DIGITAL		LITERAL1
-REPORT_VERSION		LITERAL1
-SET_PIN_MODE		LITERAL1
+DIGITAL_MESSAGE	LITERAL1
+ANALOG_MESSAGE	LITERAL1
+REPORT_ANALOG	LITERAL1
+REPORT_DIGITAL	LITERAL1
+REPORT_VERSION	LITERAL1
+SET_PIN_MODE	LITERAL1
 SET_DIGITAL_PIN_VALUE	LITERAL1
-SYSTEM_RESET		LITERAL1
-START_SYSEX		LITERAL1
-END_SYSEX		LITERAL1
-REPORT_FIRMWARE		LITERAL1
-STRING_DATA		LITERAL1
+SYSTEM_RESET	LITERAL1
+START_SYSEX	LITERAL1
+END_SYSEX	LITERAL1
+REPORT_FIRMWARE	LITERAL1
+STRING_DATA	LITERAL1
 
-PIN_MODE_ANALOG		LITERAL1
-PIN_MODE_PWM		LITERAL1
-PIN_MODE_SERVO		LITERAL1
-PIN_MODE_SHIFT		LITERAL1
-PIN_MODE_I2C		LITERAL1
+PIN_MODE_ANALOG	LITERAL1
+PIN_MODE_PWM	LITERAL1
+PIN_MODE_SERVO	LITERAL1
+PIN_MODE_SHIFT	LITERAL1
+PIN_MODE_I2C	LITERAL1
 PIN_MODE_ONEWIRE	LITERAL1
 PIN_MODE_STEPPER	LITERAL1
 PIN_MODE_ENCODER	LITERAL1
-PIN_MODE_SERIAL		LITERAL1
-PIN_MODE_PULLUP		LITERAL1
-PIN_MODE_IGNORE		LITERAL1
+PIN_MODE_SERIAL	LITERAL1
+PIN_MODE_PULLUP	LITERAL1
+PIN_MODE_IGNORE	LITERAL1
 
-TOTAL_PINS		LITERAL1
+TOTAL_PINS	LITERAL1
 TOTAL_ANALOG_PINS	LITERAL1
 TOTAL_DIGITAL_PINS	LITERAL1
-TOTAL_PIN_MODES		LITERAL1
-TOTAL_PORTS		LITERAL1
-ANALOG_PORT		LITERAL1
-MAX_SERVOS		LITERAL1
+TOTAL_PIN_MODES	LITERAL1
+TOTAL_PORTS	LITERAL1
+ANALOG_PORT	LITERAL1
+MAX_SERVOS	LITERAL1