diff --git a/src/themes/ThonnyDefaultLight.ts b/src/themes/ThonnyDefaultLight.ts
new file mode 100644
index 0000000..29d90e3
--- /dev/null
+++ b/src/themes/ThonnyDefaultLight.ts
@@ -0,0 +1,35 @@
+import { ITheme } from "./ITheme";
+
+// Matches the thonny theme defined here:
+// https://github.com/thonny/thonny/blob/4fffa98e5c47e58ce72190c004f2ebc00879e4cd/thonny/plugins/base_syntax_themes.py#L5
+export const ThonnyDefaultLight: ITheme = {
+  DisplayName: 'Thonny Default Light',
+  CodeStyles: {
+    Keyword: {
+      Color: '7f0055',
+      FontWeight: 'bold'
+    },
+    Comment: {
+      Color: 'a9a9a9'
+    },
+    Plaintext: {
+      Color: '000000'
+    },
+    Punctuation: {
+      Color: '000000'
+    },
+    String: {
+      Color: '006400'
+    },
+    Literal: {
+      Color: 'b04600'
+    },
+    Type: {
+      Color: '7f0055'
+    }
+  },
+  BackgroundStyle: {},
+  LineNumberStyle: {
+    Background: 'none'
+  }
+};
diff --git a/src/themes/index.ts b/src/themes/index.ts
index 8424c35..85e2e1c 100644
--- a/src/themes/index.ts
+++ b/src/themes/index.ts
@@ -9,6 +9,7 @@ import { AtelierCaveLight } from './AtelierCaveLight';
 import { AtelierCaveDark } from './AtelierCaveDark';
 import { BlueHintGray } from './BlueHintGray';
 import { ChatGPTDark } from './ChatGPTDark';
+import { ThonnyDefaultLight } from './ThonnyDefaultLight';
 
 type ThemeDictionary = { [key: string]: ITheme };
 
@@ -43,7 +44,8 @@ export const Themes: ThemeDictionary = {
   AtelierCaveLight,
   AtelierCaveDark,
   BlueHintGray,
-  ChatGPTDark
+  ChatGPTDark,
+  ThonnyDefaultLight,
 }
 
 export function GetLineNumberStyle(theme: string) {