diff --git a/frontend/src/ts/constants/themes.ts b/frontend/src/ts/constants/themes.ts
index a01a9d96b7a9..41538507bc48 100644
--- a/frontend/src/ts/constants/themes.ts
+++ b/frontend/src/ts/constants/themes.ts
@@ -1126,6 +1126,12 @@ export const themes: Record<ThemeName, Omit<Theme, "name">> = {
     subColor: "#ffaca3",
     textColor: "#feffdb",
   },
+  lemon_lime: {
+    bgColor: "#475f05",
+    mainColor: "#c7c42a",
+    subColor: "#e0e023",
+    textColor: "#ecee8c",
+  },
 };
 
 export const ThemesList: Theme[] = Object.keys(themes)
diff --git a/frontend/static/themes/lemon_lime.css b/frontend/static/themes/lemon_lime.css
new file mode 100644
index 000000000000..d0803ded827a
--- /dev/null
+++ b/frontend/static/themes/lemon_lime.css
@@ -0,0 +1,12 @@
+:root {
+  --bg-color: #475f05;
+  --caret-color: #a6c730;
+  --main-color: #c7c42a;
+  --sub-color: #e0e023;
+  --sub-alt-color: #293614;
+  --text-color: #ecee8c;
+  --error-color: #bb1a1a;
+  --error-extra-color: #851313;
+  --colorful-error-color: #bb1a1a;
+  --colorful-error-extra-color: #851313;
+}
diff --git a/packages/schemas/src/themes.ts b/packages/schemas/src/themes.ts
index 0633201c7a25..977474c20295 100644
--- a/packages/schemas/src/themes.ts
+++ b/packages/schemas/src/themes.ts
@@ -189,6 +189,7 @@ export const ThemeNameSchema = z.enum(
     "wavez",
     "witch_girl",
     "pale_nimbus",
+    "lemon_lime",
   ],
   {
     errorMap: customEnumErrorHandler("Must be a known theme"),