Scroll top button personalization

Hi, I tried adding a scroll to top button so far It's fine I tried personalizing it but the only thing I can do is change its color, I wanna know if its possible to change the text inside it. Right now ‘’Top‘’ appears on it, I believe it's the default? I need to change it to ‘’Home‘’ or if possible to change it to an arrow. 

I'm obviously not good at coding, I only tried it because I couldn't find any other way to insert a scroll to top button, I'd be helpful if some of you know a solution regarding this. Thanks.

You could try changing all the  tops to Home and see if that works. Capitalize where needed also.