diff --git a/frontend/src/ts/constants/themes.ts b/frontend/src/ts/constants/themes.ts
index a01a9d96b7a9..660e87921d01 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",
   },
+  forest: {
+    bgColor: "#371b13",
+    mainColor: "#53a267",
+    subColor: "#9c8275",
+    textColor: "#e1ffdf",
+  },
 };
 
 export const ThemesList: Theme[] = Object.keys(themes)
diff --git a/frontend/static/themes/forest.css b/frontend/static/themes/forest.css
new file mode 100644
index 000000000000..f6dfb2de0416
--- /dev/null
+++ b/frontend/static/themes/forest.css
@@ -0,0 +1,12 @@
+:root {
+  --bg-color: #371b13;
+  --main-color: #53a267;
+  --caret-color: #3fa659;
+  --sub-color: #9c8275;
+  --sub-alt-color: #8f6d5b;
+  --text-color: #e1ffdf;
+  --error-color: #ff6c70;
+  --error-extra-color: #842b31;
+  --colorful-error-color: #ff6753;
+  --colorful-error-extra-color: #bb2815;
+}
diff --git a/packages/schemas/src/themes.ts b/packages/schemas/src/themes.ts
index 0633201c7a25..374bce44f3d0 100644
--- a/packages/schemas/src/themes.ts
+++ b/packages/schemas/src/themes.ts
@@ -59,6 +59,7 @@ export const ThemeNameSchema = z.enum(
     "fledgling",
     "fleuriste",
     "floret",
+    "forest",
     "froyo",
     "frozen_llama",
     "fruit_chew",