diff --git a/vscode-extension/syntaxes/cent.tmLanguage.json b/vscode-extension/syntaxes/cent.tmLanguage.json
index 18f0e31..a4724e2 100644
--- a/vscode-extension/syntaxes/cent.tmLanguage.json
+++ b/vscode-extension/syntaxes/cent.tmLanguage.json
@@ -8,12 +8,18 @@
 		{
 			"include": "#strings"
 		},
+		{
+			"include": "#fractions"
+		},
 		{
 			"include": "#keywords"
 		},
 		{
 			"include": "#builtins"
 		},
+		{
+			"include": "#modules"
+		},
 		{
 			"include": "#constants"
 		},
@@ -39,15 +45,19 @@
 			"patterns": [
 				{
 					"name": "keyword.control.cent",
-					"match": "\\b(ALVID|AVT|DEFINI|DESIGNA|DONICVM|DVM|ERVMPE|ET|FACE|INVOCA|IN|PER|SI|TVNC|VSQVE|VT|CVM)\\b"
+					"match": "\\b(AETERNVM|ALVID|AVT|CONTINVA|CVM|DEFINI|DESIGNA|DONICVM|DVM|ERVMPE|ET|FACE|IN|INVOCA|NON|PER|REDI|SI|TVNC|VSQVE|VT)\\b"
 				},
 				{
 					"name": "keyword.operator.comparison.cent",
-					"match": "\\b(EST|MINVS|PLVS)\\b"
+					"match": "\\b(DISPAR|EST|MINVS|PLVS)\\b"
 				},
 				{
 					"name": "keyword.operator.arithmetic.cent",
-					"match": "(\\*|\\+|-|/)"
+					"match": "\\b(RELIQVVM)\\b"
+				},
+				{
+					"name": "keyword.operator.arithmetic.cent",
+					"match": "(\\*|\\+|-|/|&)"
 				}
 			]
 		},
@@ -55,7 +65,15 @@
 			"patterns": [
 				{
 					"name": "support.function.builtin.cent",
-					"match": "\\b(AVDI_NVMERVS|AVDI|DICE|FORTIS_NVMERVS|FORTIS_ELECTIONIS|LONGITVDO|REDI)\\b"
+					"match": "\\b(AVDI_NVMERVS|AVDI|DICE|EVERRO|FORTIS_NVMERVS|FORTIS_ELECTIONIS|LONGITVDO)\\b"
+				}
+			]
+		},
+		"modules": {
+			"patterns": [
+				{
+					"name": "support.class.module.cent",
+					"match": "\\b(FORS|FRACTIO|MAGNVM|SVBNVLLA)\\b"
 				}
 			]
 		},
@@ -63,7 +81,7 @@
 			"patterns": [
 				{
 					"name": "constant.numeric.roman.cent",
-					"match": "\\b[IVXLCDM]+\\b"
+					"match": "\\b[IVXLCDM][IVXLCDM_]*\\b"
 				},
 				{
 					"name": "constant.language.roman.cent",
@@ -75,6 +93,18 @@
 				}
 			]
 		},
+		"fractions": {
+			"patterns": [
+				{
+					"name": "constant.numeric.fraction.cent",
+					"match": "\\b[IVXLCDM][IVXLCDM_]*(?:S[S:.|]*|:[S:.|]+|\\.[S:.|]*)"
+				},
+				{
+					"name": "constant.numeric.fraction.cent",
+					"match": "(?<![IVXLCDM_])(?:S[S:.|]+|:[S:.|]+)"
+				}
+			]
+		},
 		"strings": {
 			"patterns": [
 				{
@@ -111,4 +141,4 @@
 		}
 	},
 	"scopeName": "source.cent"
-}
\ No newline at end of file
+}