Suggest that you give Themes a Save As option
Now we are using Alternate Output and creating many Themes we find that duplicating or Save As would be very useful. Each time you create a theme from another theme there is no option to keep both themes when you rename the edited version. I have tried exporting the theme and renaming it through Windows but when I import it back into EW Themes it keeps the original name.
Thus having to create each theme from scratch is a pain especially when you are maybe only modifying 1 item.
sorry but I put this in the General section as it shows that this section hasn't been updated in 4 years (see attached jpg) and still doesn't show any of the recent updates.