Changing the icon on file upload button widget
I am new to Nuxeo and trying to build a front-end application using nuxeo and polymer js. We are using nuxeo file upload widget to upload certain files. Currently we are using the nuxeo-file element to upload the files. We need to change the icon of the file upload button. Can anyone please help me in changing its UI. Currently it is a button, we need to have an paper clip image which shows file to be attached/uploaded.