diff --git a/css/index.scss b/css/index.scss
index 3d97d1a..9863079 100644
--- a/css/index.scss
+++ b/css/index.scss
@@ -1,8 +1,8 @@
 .particles {
-    background: #fafafa;
+    background: #ddd;
     // background: url('../res/seigaiha.svg');
     background-size: 100px 50px;
-    border-radius: 50px;
+    // border-radius: 50px;
     height: 600px;
     margin: 10px auto;
     position: relative;
diff --git a/css/style.css b/css/style.css
index 889bbcb..f0d7f06 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1,7 +1,6 @@
 .particles {
-  background: #fafafa;
+  background: #ddd;
   background-size: 100px 50px;
-  border-radius: 50px;
   height: 600px;
   margin: 10px auto;
   position: relative;
diff --git a/js/animation2.js b/js/animation2.js
index 46505e0..ad3538b 100644
--- a/js/animation2.js
+++ b/js/animation2.js
@@ -79,7 +79,7 @@ function flee([evt, store]) {
 };
 
 function randomMoveVector() {
-    const speed = 5;
+    const speed = 10;
     let dx = Math.round(Math.random() * speed);
     let dy = Math.pow(Math.pow(speed, 2) - Math.pow(dx, 2), 0.5);
 
diff --git a/js/bundle.js b/js/bundle.js
index 434fb0c..d523022 100644
--- a/js/bundle.js
+++ b/js/bundle.js
@@ -6186,7 +6186,7 @@ function flee(_ref3) {
 };
 
 function randomMoveVector() {
-    var speed = 5;
+    var speed = 10;
     var dx = Math.round(Math.random() * speed);
     var dy = Math.pow(Math.pow(speed, 2) - Math.pow(dx, 2), 0.5);