diff --git a/renderer.js b/renderer.js
index 17dda34..8806a34 100644
--- a/renderer.js
+++ b/renderer.js
@@ -591,8 +591,17 @@ function updateAudioLevel(now) {
   }
 
   const helperDriven = latestSource === "helper";
-  const breathing = helperDriven ? 0.003 : 0.028 * (Math.sin(now * 0.00023) + 1);
-  const response = helperDriven ? 0.2 : 0.018;
+  
+  let currentBreathingAmp = 0.028;
+  let currentPhysicsSmooth = 0.018;
+  
+  if (visualizerState.selectedTheme === "ambientWave" && visualizerState.ambientWave) {
+      currentBreathingAmp = parseFloat(visualizerState.ambientWave.breathingAmplitude) || 0.028;
+      currentPhysicsSmooth = parseFloat(visualizerState.ambientWave.physicsSmoothing) || 0.018;
+  }
+  
+  const breathing = helperDriven ? 0.003 : currentBreathingAmp * (Math.sin(now * 0.00023) + 1);
+  const response = helperDriven ? 0.2 : currentPhysicsSmooth;
   smoothedLevel += ((incomingLevel + breathing) - smoothedLevel) * response;
 }
 
@@ -757,6 +766,8 @@ function renderFrame(now) {
       performanceMode: visualizerState.performanceMode
     });
   } else {
+    const ambientSettings = getAmbientWaveSettings();
+    context.globalCompositeOperation = ambientSettings.blendMode || "source-over";
     drawAmbientWave({
       context,
       width,
@@ -765,9 +776,10 @@ function renderFrame(now) {
       smoothedLevel,
       latestSource,
       edgeGradient,
-      settings: getAmbientWaveSettings(),
+      settings: ambientSettings,
       performanceMode: visualizerState.performanceMode
     });
+    context.globalCompositeOperation = "source-over";
   }
 
   context.globalAlpha = 1;
diff --git a/settings.html b/settings.html
index 6f4070e..1079cfa 100644
--- a/settings.html
+++ b/settings.html
@@ -145,6 +145,8 @@ <h1><span class="header-accent"></span>Advanced Settings</h1>
                     <p>Fine-tune the appearance with granular sliders and custom gradients.</p>
                 </header>
 
+                <div id="dynamic-advanced-theme-settings" class="settings-group" style="margin-bottom: 20px;"></div>
+
                 <div id="standard-advanced-controls">
                     <div class="settings-group">
                         <div style="display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 16px;">
diff --git a/settings.js b/settings.js
index 5d58390..0dbc7c5 100644
--- a/settings.js
+++ b/settings.js
@@ -23,7 +23,10 @@ document.addEventListener('DOMContentLoaded', () => {
             tone: { label: "Tone", options: ["blue", "purple", "warm", "custom"] },
             sensitivity: { label: "Sensitivity", options: ["low", "medium", "high", "custom"] },
             edgeMode: { label: "Edge Mode", options: ["top", "bottom", "both"] },
-            glowStrength: { label: "Glow Strength", options: ["soft", "medium", "strong", "custom"] }
+            glowStrength: { label: "Glow Strength", options: ["soft", "medium", "strong", "custom"] },
+            blendMode: { label: "Blend Mode", options: ["source-over", "screen", "overlay", "lighter"], advanced: true },
+            physicsSmoothing: { label: "Physics Smoothness", options: ["0.01", "0.018", "0.03", "0.05"], advanced: true },
+            breathingAmplitude: { label: "Breathing Amp.", options: ["0.01", "0.028", "0.05", "0.08"], advanced: true }
         },
         reactiveBorder: {
             colorStyle: { label: "Color Style", options: ["rainbow", "neonBlue", "neonPurple", "warmGlow", "custom"] },
@@ -101,10 +104,16 @@ document.addEventListener('DOMContentLoaded', () => {
 
     function renderThemeSettings(themeId) {
         const container = document.getElementById('dynamic-theme-settings');
+        const advancedContainer = document.getElementById('dynamic-advanced-theme-settings');
         container.innerHTML = '';
+        if (advancedContainer) advancedContainer.innerHTML = '<h3>Theme Advanced Tweaks</h3><p class="setting-desc">Tweak the physics and compositing values directly.</p>';
         const schema = THEMES_SCHEMA[themeId];
-        if (!schema) return;
+        if (!schema) {
+            if (advancedContainer) advancedContainer.style.display = 'none';
+            return;
+        }
         
+        let hasAdvanced = false;
         const currentThemeObj = cachedSettings[themeId] || {};
 
         for (const [key, prop] of Object.entries(schema)) {
@@ -137,7 +146,16 @@ document.addEventListener('DOMContentLoaded', () => {
             select.addEventListener('change', dispatchThemeUpdate);
             
             div.appendChild(select);
-            container.appendChild(div);
+            if (prop.advanced && advancedContainer) {
+                hasAdvanced = true;
+                advancedContainer.appendChild(div);
+            } else {
+                container.appendChild(div);
+            }
+        }
+        
+        if (advancedContainer) {
+            advancedContainer.style.display = hasAdvanced ? 'block' : 'none';
         }
         
         updateAdvancedSliders(themeId);
@@ -796,7 +814,7 @@ refreshThemeProfiles();
     function dispatchThemeUpdate() {
         if (!window.visualizerSettings) return;
         const selectedTheme = themeSelector.value;
-        const dropdowns = document.querySelectorAll('#dynamic-theme-settings .theme-trigger');
+        const dropdowns = document.querySelectorAll('#dynamic-theme-settings .theme-trigger, #dynamic-advanced-theme-settings .theme-trigger');
         
         const themePatch = {};
         dropdowns.forEach(dd => {
diff --git a/settingsStore.js b/settingsStore.js
index 3b3ca24..74b822e 100644
--- a/settingsStore.js
+++ b/settingsStore.js
@@ -42,7 +42,11 @@ const DEFAULT_SETTINGS = Object.freeze({
     tone: "blue",
     sensitivity: "medium",
     edgeMode: "bottom",
-    glowStrength: "medium"
+    glowStrength: "medium",
+    tuning: "default",
+    blendMode: "source-over",
+    physicsSmoothing: 0.018,
+    breathingAmplitude: 0.028
   }),
   reactiveBorder: Object.freeze({
     colorStyle: "rainbow",
@@ -331,7 +335,11 @@ function sanitizeAmbientWave(input = {}) {
     edgeMode: pick(input.edgeMode, VALID_EDGE_MODES, DEFAULT_SETTINGS.ambientWave.edgeMode),
     glowStrength: pick(input.glowStrength, VALID_GLOW_STRENGTHS, DEFAULT_SETTINGS.ambientWave.glowStrength),
     customColors: sanitizeCustomColors(input.customColors, DEFAULT_SETTINGS.customColors),
-    customSensitivity: sanitizeSensitivity(input.customSensitivity)
+    customSensitivity: sanitizeSensitivity(input.customSensitivity),
+    tuning: typeof input.tuning === 'string' ? input.tuning : DEFAULT_SETTINGS.ambientWave.tuning,
+    blendMode: typeof input.blendMode === 'string' ? input.blendMode : DEFAULT_SETTINGS.ambientWave.blendMode,
+    physicsSmoothing: typeof input.physicsSmoothing === 'number' ? input.physicsSmoothing : DEFAULT_SETTINGS.ambientWave.physicsSmoothing,
+    breathingAmplitude: typeof input.breathingAmplitude === 'number' ? input.breathingAmplitude : DEFAULT_SETTINGS.ambientWave.breathingAmplitude
   };
 }