diff --git a/nodes/intervene.py b/nodes/intervene.py
index 237fd3b..baff7e6 100644
--- a/nodes/intervene.py
+++ b/nodes/intervene.py
@@ -450,8 +450,8 @@ def _build_tone_fn(lcs_data, contrast, brightness, saturation, color_temperature
 # Preset names for the combo widget. Actual values live in web/js/tone_preset.js
 # which syncs them into the slider widgets on the frontend.
 TONE_PRESET_NAMES = [
-    "Cinematic", "HDR", "Vivid", "Dramatic", "Low Key",
-    "High Key", "Warm", "Cool", "Desaturated", "Custom",
+    "Custom", "Base", "Cinematic", "HDR", "Vivid", "Dramatic",
+    "Low Key", "High Key", "Warm", "Cool", "Desaturated",
 ]
 
 
diff --git a/web/js/tone_preset.js b/web/js/tone_preset.js
index ccb1501..f0cbfe7 100644
--- a/web/js/tone_preset.js
+++ b/web/js/tone_preset.js
@@ -3,6 +3,7 @@ import { app } from "../../../scripts/app.js";
 // Preset values — the single source of truth for preset parameters.
 // TONE_PRESET_NAMES in nodes/intervene.py must list matching keys.
 const TONE_PRESETS = {
+    "Base":        { contrast: 1.0,  brightness:  0.0,  saturation: 1.0,  color_temperature: 0.0 },
     "Cinematic":   { contrast: 1.20, brightness: -0.05, saturation: 0.90, color_temperature: 0.05 },
     "HDR":         { contrast: 1.40, brightness:  0.0,  saturation: 1.20, color_temperature: 0.0 },
     "Vivid":       { contrast: 1.10, brightness:  0.0,  saturation: 1.50, color_temperature: 0.0 },