Haven't tested the theme yet but I installed from console and saw:

mkdir: cannot create directory '/home/user/.opera': File exists
mkdir: cannot create directory '/home/user/.opera/skin': File exists


Use mkdir mkdir -p ~user/.opera/skin instead. I don't know about ~user (I do that instead of variables) but .opera/skin is then created in one command and -p will do this even if it already exists; no error. OTOH, why make this at all? I don't have Opera installed, and AFAIK I cannot get Opera installed on my N810 with Diablo.