diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0562a130..c9ace70d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,7 @@
 # CHANGELOG
+## 3.17.3 | 2024.09.13
+- Improved C/C++ highlight #828
+  
 ## 3.17.2 | 2024.04.25
 - Update README.md
 
diff --git a/package.json b/package.json
index 5bebf5da..6a6bd25f 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "material-theme",
   "displayName": "One Dark Pro",
   "description": "Atom's iconic One Dark theme for Visual Studio Code",
-  "version": "3.17.2",
+  "version": "3.17.3",
   "publisher": "zhuangtongfa",
   "license": "MIT",
   "bugs": {
diff --git a/src/themes/themeData.ts b/src/themes/themeData.ts
index 0a9c1dfa..7cc9a582 100644
--- a/src/themes/themeData.ts
+++ b/src/themes/themeData.ts
@@ -1568,6 +1568,15 @@ export default {
           foreground: colorType.purple,
         },
       },
+      {
+        name: 'c arithmetic',
+        scope: [
+          'keyword.operator.arithmetic.c','keyword.operator.arithmetic.cpp'
+        ],
+        settings: {
+          foreground: colorType.purple,
+        },
+      },
       {
         name: 'Go package name',
         scope: ['entity.name.package.go'],
diff --git a/themes/OneDark-Pro-darker.json b/themes/OneDark-Pro-darker.json
index cb3e546b..099020c5 100644
--- a/themes/OneDark-Pro-darker.json
+++ b/themes/OneDark-Pro-darker.json
@@ -1528,6 +1528,16 @@
         "foreground": "#c678dd"
       }
     },
+    {
+      "name": "c arithmetic",
+      "scope": [
+        "keyword.operator.arithmetic.c",
+        "keyword.operator.arithmetic.cpp"
+      ],
+      "settings": {
+        "foreground": "#c678dd"
+      }
+    },
     {
       "name": "Go package name",
       "scope": [
diff --git a/themes/OneDark-Pro-flat.json b/themes/OneDark-Pro-flat.json
index 20f746fc..6a09c091 100644
--- a/themes/OneDark-Pro-flat.json
+++ b/themes/OneDark-Pro-flat.json
@@ -1531,6 +1531,16 @@
         "foreground": "#c678dd"
       }
     },
+    {
+      "name": "c arithmetic",
+      "scope": [
+        "keyword.operator.arithmetic.c",
+        "keyword.operator.arithmetic.cpp"
+      ],
+      "settings": {
+        "foreground": "#c678dd"
+      }
+    },
     {
       "name": "Go package name",
       "scope": [
diff --git a/themes/OneDark-Pro-mix.json b/themes/OneDark-Pro-mix.json
index 7bbb79a8..4bdc11db 100644
--- a/themes/OneDark-Pro-mix.json
+++ b/themes/OneDark-Pro-mix.json
@@ -1531,6 +1531,16 @@
         "foreground": "#c678dd"
       }
     },
+    {
+      "name": "c arithmetic",
+      "scope": [
+        "keyword.operator.arithmetic.c",
+        "keyword.operator.arithmetic.cpp"
+      ],
+      "settings": {
+        "foreground": "#c678dd"
+      }
+    },
     {
       "name": "Go package name",
       "scope": [
diff --git a/themes/OneDark-Pro.json b/themes/OneDark-Pro.json
index f32fd171..f15d86ee 100644
--- a/themes/OneDark-Pro.json
+++ b/themes/OneDark-Pro.json
@@ -1528,6 +1528,16 @@
         "foreground": "#c678dd"
       }
     },
+    {
+      "name": "c arithmetic",
+      "scope": [
+        "keyword.operator.arithmetic.c",
+        "keyword.operator.arithmetic.cpp"
+      ],
+      "settings": {
+        "foreground": "#c678dd"
+      }
+    },
     {
       "name": "Go package name",
       "scope": [