diff --git a/demo/index.html b/demo/index.html
index 68777eaf..811b6b57 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -548,7 +548,7 @@ <h3>📚 Available Commands</h3>
               foreground: '#d4d4d4',
               cursor: '#ffffff',
               cursorAccent: '#000000',
-              selectionBackground: '#264f78',
+              selectionBackground: 'rgba(255, 255, 255, 0.3)',
               selectionForeground: '#ffffff',
               black: '#000000',
               red: '#cd3131',
diff --git a/lib/input-handler.ts b/lib/input-handler.ts
index 889c45a0..9e31c3dd 100644
--- a/lib/input-handler.ts
+++ b/lib/input-handler.ts
@@ -270,7 +270,6 @@ export class InputHandler {
     // Allow Ctrl+V and Cmd+V to trigger paste event (don't preventDefault)
     if ((event.ctrlKey || event.metaKey) && event.code === 'KeyV') {
       // Let the browser's native paste event fire
-      console.log('[InputHandler] ⌨️  Ctrl/Cmd+V detected, allowing paste event');
       return;
     }
 
@@ -279,7 +278,6 @@ export class InputHandler {
     // Note: Ctrl+C on all platforms sends interrupt signal (0x03)
     if (event.metaKey && event.code === 'KeyC') {
       // Let browser/SelectionManager handle copy
-      console.log('[InputHandler] ⌨️  Cmd+C detected, allowing copy');
       return;
     }
 
@@ -459,11 +457,6 @@ export class InputHandler {
       return;
     }
 
-    console.log(
-      '[InputHandler] 📋 Pasting text:',
-      text.substring(0, 50) + (text.length > 50 ? '...' : '')
-    );
-
     // Send the text to the terminal
     // Note: For bracketed paste mode, we would wrap this in \x1b[200~ ... \x1b[201~
     // but for now, send raw text
diff --git a/lib/renderer.test.ts b/lib/renderer.test.ts
index 60683857..9f791170 100644
--- a/lib/renderer.test.ts
+++ b/lib/renderer.test.ts
@@ -44,7 +44,7 @@ describe('CanvasRenderer', () => {
     });
 
     test('has selection colors', () => {
-      expect(DEFAULT_THEME.selectionBackground).toBe('#264f78');
+      expect(DEFAULT_THEME.selectionBackground).toBe('rgba(255, 255, 255, 0.3)');
       expect(DEFAULT_THEME.selectionForeground).toBe('#d4d4d4');
     });
   });
diff --git a/lib/renderer.ts b/lib/renderer.ts
index 27ecaf54..4b25a1d7 100644
--- a/lib/renderer.ts
+++ b/lib/renderer.ts
@@ -52,7 +52,7 @@ export const DEFAULT_THEME: Required<ITheme> = {
   background: '#1e1e1e',
   cursor: '#ffffff',
   cursorAccent: '#1e1e1e',
-  selectionBackground: '#264f78',
+  selectionBackground: 'rgba(255, 255, 255, 0.3)',
   selectionForeground: '#d4d4d4',
   black: '#000000',
   red: '#cd3131',
diff --git a/lib/selection-manager.ts b/lib/selection-manager.ts
index 47892a41..5cf5c21e 100644
--- a/lib/selection-manager.ts
+++ b/lib/selection-manager.ts
@@ -202,7 +202,6 @@ export class SelectionManager {
     canvas.addEventListener('mousedown', (e: MouseEvent) => {
       if (e.button === 0) {
         // Left click only
-        console.log('[Selection] 🖱️  mousedown - starting selection');
 
         // CRITICAL: Focus the terminal so it can receive keyboard input
         // The canvas doesn't have tabindex, but the parent container does
@@ -222,7 +221,6 @@ export class SelectionManager {
         this.selectionStart = cell;
         this.selectionEnd = cell;
         this.isSelecting = true;
-        console.log('[Selection] ✅ isSelecting = true');
       }
     });
 
@@ -238,7 +236,6 @@ export class SelectionManager {
     // Mouse leave - stop selecting if mouse leaves canvas while dragging
     canvas.addEventListener('mouseleave', (e: MouseEvent) => {
       if (this.isSelecting) {
-        console.log('[Selection] ⚠️  mouseleave while selecting - but keeping selection active');
         // DON'T clear isSelecting here - allow dragging outside canvas
         // The document mouseup handler will catch the release
       }
@@ -248,9 +245,7 @@ export class SelectionManager {
     // This catches mouseup events that happen outside the canvas (common during drag)
     this.boundMouseUpHandler = (e: MouseEvent) => {
       if (this.isSelecting) {
-        console.log('[Selection] 🖱️  mouseup - stopping selection');
         this.isSelecting = false;
-        console.log('[Selection] ✅ isSelecting = false');
 
         const text = this.getSelection();
         if (text) {
@@ -287,7 +282,6 @@ export class SelectionManager {
         const text = this.getSelection();
         if (text) {
           this.copyToClipboard(text);
-          console.log('Copied selection to clipboard (via right-click)');
         }
       }
     });
@@ -370,10 +364,7 @@ export class SelectionManager {
       navigator.clipboard
         .writeText(text)
         .then(() => {
-          console.log(
-            '✅ Copied to clipboard (Clipboard API):',
-            text.substring(0, 50) + (text.length > 50 ? '...' : '')
-          );
+          // Successfully copied
         })
         .catch((err) => {
           console.error('❌ Clipboard API failed:', err);
@@ -382,7 +373,6 @@ export class SelectionManager {
         });
     } else {
       // Fallback to execCommand for non-secure contexts (like mux.coder)
-      console.log('💡 Using fallback copy method (Clipboard API requires HTTPS)');
       this.copyToClipboardFallback(text);
     }
   }
@@ -416,12 +406,7 @@ export class SelectionManager {
         previouslyFocused.focus();
       }
 
-      if (successful) {
-        console.log(
-          '✅ Copied to clipboard (fallback):',
-          text.substring(0, 50) + (text.length > 50 ? '...' : '')
-        );
-      } else {
+      if (!successful) {
         console.error('❌ Copy failed (both methods)');
       }
     } catch (err) {