I am aware of the issue with the URI, I just did not think anyone was using subfolders. I will fix this. You do not need to perform any changes.
The use of image rather than a glyph is intentional. It is not easy to know which devices can render a unicode glyph, so it will have to be an image throughout.
I have also implemented the same change to the Exchange extension but this is not released yet. The reload buttons will be uniform throughout.
kind regards