How to replace the Google loading gear in Blogger's Dynamic View template

Go to Dashboard - Template - Customize - Template Designer - Advanced - Add CSS - paste the following code (and customize the code as needed) - Press enter after the last character of the last line } - Apply to Blog. 

Enter this below code the custom CSS of the blogger template.

.blogger-gear, .overview-sspe {

background-image: url('') !important;

height: 196px !important;

width: 196px !important;

This code has been programmed to add a penguin. Replace the image to suit.