Just installed Linux Mint 17 "Rebecca" Mate. I'm trying to install a new theme and am directed to
I've downloaded a couple and their instructions request that contents are copied to
However, I don't have writing permissions to copy to this folder. I carried out a workaround to basically force the download into /themes, but encountered a fairly obstructive error upon booting wherein the ICE authority file could not be updated. This has since been resolved.
What's a successful method?