Highlight codewords

Phrases in blue, responses in red.

code/game/say.dm

@@ -70,6 +70,18 @@ GLOBAL_LIST_INIT(freqtospan, list(
 
 	return "[spanpart1][spanpart2][freqpart][languageicon][compose_track_href(speaker, namepart)][namepart][compose_job(speaker, message_language, raw_message, radio_freq)][endspanpart][messagepart]"
 
+/atom/movable/proc/augment_heard(message, mob/mob_hearing)
+	if (mob_hearing.mind.special_role == ROLE_TRAITOR)
+		for (var/codeword in GLOB.syndicate_code_phrase)
+			var/regex/codeword_match = new("(" + codeword + ")", "ig")
+			message = codeword_match.Replace(message, "<font color=blue>$1</font>")
+
+		for (var/codeword in GLOB.syndicate_code_response)
+			var/regex/codeword_match = new("(" + codeword + ")", "ig")
+			message = codeword_match.Replace(message, "<font color=red>$1</font>")
+
+	return message
+
 /atom/movable/proc/compose_track_href(atom/movable/speaker, message_langs, raw_message, radio_freq)
 	return ""
 
@@ -203,6 +215,8 @@ INITIALIZE_IMMEDIATE(/atom/movable/virtualspeaker)
 	else  // Unidentifiable mob
 		job = "Unknown"
 
+
+
 /atom/movable/virtualspeaker/GetJob()
 	return job
 

code/modules/mob/living/say.dm

@@ -229,6 +229,8 @@ GLOBAL_LIST_INIT(department_radio_keys, list(
 	// Recompose message for AI hrefs, language incomprehension.
 	message = compose_message(speaker, message_language, raw_message, radio_freq, spans, message_mode)
 	message = hear_intercept(message, speaker, message_language, raw_message, radio_freq, spans, message_mode)
+	message = augment_heard(message, src)
+
 	show_message(message, 2, deaf_message, deaf_type)
 	return message