bump bg music volume to 0.2

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/index.html b/index.html
index ce3bfc8..a71ed89 100755
--- a/index.html
+++ b/index.html
@@ -361,7 +361,7 @@
   mtBtn.addEventListener('click', () => {
     musicOn = !musicOn;
     if (musicOn) {
-      bgm.volume = 0.15;
+      bgm.volume = 0.2;
       bgm.play();
       mtBtn.textContent = '❚❚';
       mtLabel.textContent = '♪ a-dog — bazaar theme';