I had to rethink the option of deleting my extra images or not. After some research I had chosen to change my function.php code instead of using a plugin. But this ImageSize has helped me to check what strings where actually the ones to modify. I have now uninstalled it, but when I tested it worked smoothly. It’s very useful if you know that you will never need extra images… in my case I needed to do a custom setting so I’m not using it anymore but, as I said, ImageSize is simple and effective.
I've tried a couple of other scroll to top plugins, but they were ugly and/or got in the way of the text on the page. But MDC gives a large selection of buttons, so I was able to find one that matched my color scheme and was small enough to not block the text.
I was troubled by the way comments are present on wordperess and this plugin solved this problem
works great, easy to install and to setup