diff --git a/images/feedback.png b/images/feedback.png
index f4a0d8251d..ce9dc04988 100644
Binary files a/images/feedback.png and b/images/feedback.png differ
diff --git a/images/feedback@2x.png b/images/feedback@2x.png
index bfe5e7f95d..9b81ce6e03 100644
Binary files a/images/feedback@2x.png and b/images/feedback@2x.png differ
diff --git a/images/preferences.png b/images/preferences.png
index c533e97dd9..e0bdc2f32e 100644
Binary files a/images/preferences.png and b/images/preferences.png differ
diff --git a/images/preferences@2x.png b/images/preferences@2x.png
index 3aba6c049e..2b8eda4f6b 100644
Binary files a/images/preferences@2x.png and b/images/preferences@2x.png differ
diff --git a/images/user.png b/images/user.png
index 82cae572a0..8ecbd702f5 100644
Binary files a/images/user.png and b/images/user.png differ
diff --git a/images/user@2x.png b/images/user@2x.png
index 0d0991cece..3d9b9cd2fa 100644
Binary files a/images/user@2x.png and b/images/user@2x.png differ
diff --git a/images/whaleicon.png b/images/whaleicon.png
index 410aef41fe..21a1e29039 100644
Binary files a/images/whaleicon.png and b/images/whaleicon.png differ
diff --git a/images/whaleicon@2x.png b/images/whaleicon@2x.png
index 941ed32fe7..de6ff361a1 100644
Binary files a/images/whaleicon@2x.png and b/images/whaleicon@2x.png differ
diff --git a/styles/left-panel.less b/styles/left-panel.less
index 160bce82d1..4bd8287944 100644
--- a/styles/left-panel.less
+++ b/styles/left-panel.less
@@ -270,7 +270,7 @@
 
     &:active {
       img, .text {
-        -webkit-filter: brightness(0.8);
+        -webkit-filter: brightness(0.7);
       }
     }
   }
@@ -279,12 +279,9 @@
     flex: 1 auto;
     border-right: 1px solid #F0F4F8;
     img {
-      margin: 0 10px 0 0;
-      height: 21px;
-      width: 25px;
+      margin-right: 10px;
     }
   }
-
   .btn-feedback {
     border-right: 1px solid #F0F4F8;
   }