diff --git a/auto-image-styles.css b/auto-image-styles.css
index ad30e7e..baf5316 100644
--- a/auto-image-styles.css
+++ b/auto-image-styles.css
@@ -264,7 +264,10 @@
   transition: background 0.2s ease;
   position: relative;
   z-index: 2;
-  /* Theme-specific styling applied via theme files */
+  /* Default styling for 100% classic compliance */
+  background: var(--wplace-secondary);
+  color: var(--wplace-highlight);
+  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
 }
 
 .wplace-header-title {
@@ -289,12 +292,18 @@
   align-items: center;
   justify-content: center;
   transition: all 0.2s;
-  /* Theme-specific styling applied via theme files */
+  /* Default styling for 100% classic compliance */
+  background: rgba(255,255,255,0.1);
+  color: var(--wplace-text);
+  border-radius: 4px;
+  font-family: var(--wplace-font);
 }
 
 .wplace-header-btn:hover {
   transform: scale(1.1);
-  /* Theme-specific styling applied via theme files */
+  /* Default styling for 100% classic compliance */
+  background: var(--wplace-accent);
+  color: var(--wplace-text);
 }
 
 .wplace-content {
@@ -1633,17 +1642,7 @@
   /* Theme-specific styling applied via theme files */
 }
 
-/* Settings animations */
-@keyframes settingsSlideIn {
-  from {
-    opacity: 0;
-    transform: translate(-50%, -50%) scale(0.9);
-  }
-  to {
-    opacity: 1;
-    transform: translate(-50%, -50%) scale(1);
-  }
-}
+/* Settings animations - removed duplicate, handled above */
 
 /* Font styling corrections */
 .resize-controls label {
diff --git a/themes/classic.css b/themes/classic.css
index 50904f2..806e85a 100644
--- a/themes/classic.css
+++ b/themes/classic.css
@@ -332,7 +332,7 @@
 :root .wplace-header-btn,
 .wplace-theme--classic .wplace-header-btn {
   background: rgba(255,255,255,0.1);
-  color: var(--wplace-text);
+  color: var(--wplace-highlight);
   border-radius: 4px;
   font-family: var(--wplace-font);
 }
@@ -597,6 +597,12 @@
   border-radius: 4px;
 }
 
+:root .wplace-overlay-opacity-slider,
+.wplace-theme--classic .wplace-overlay-opacity-slider {
+  background: linear-gradient(to right, #4facfe 0%, #00f2fe 100%);
+  border-radius: 4px;
+}
+
 :root .wplace-speed-value,
 .wplace-theme--classic .wplace-speed-value {
   background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);