diff --git a/extension/icons/icon-gray-128.png b/extension/icons/icon-gray-128.png index 49e857b..6ee0397 100644 Binary files a/extension/icons/icon-gray-128.png and b/extension/icons/icon-gray-128.png differ diff --git a/extension/icons/icon-gray-16.png b/extension/icons/icon-gray-16.png index 5c2fdb8..1a41947 100644 Binary files a/extension/icons/icon-gray-16.png and b/extension/icons/icon-gray-16.png differ diff --git a/extension/icons/icon-gray-32.png b/extension/icons/icon-gray-32.png index c19a4d2..50585fa 100644 Binary files a/extension/icons/icon-gray-32.png and b/extension/icons/icon-gray-32.png differ diff --git a/extension/icons/icon-gray-48.png b/extension/icons/icon-gray-48.png index ae79b1b..e4447c7 100644 Binary files a/extension/icons/icon-gray-48.png and b/extension/icons/icon-gray-48.png differ