dCore does not depend on X-fullpath-icon, but will use it first if it is found, it uses the existing icon in /usr/share/pixmaps if not specified. I see a lot of icons in my wbar that are just upstream Debian packages.
I would rather not have a full desktop environment in dCorePlus as it's main use is to make it easy for new users to access the wireless internet, setup and tce directory and start importing packages. Being able to easily install and run dCore is a hurdle that I think is keeping many novice Linux users from trying it out. After a tce directory has been established and packages imported, one can then reboot with the standard ISO if they don't want to install.
I will host the dCorePlus-jessie.sce in the sce area, one for each dCore. That way the graphical environment can be also achieved with downloading the needed files. I will make the packages into one SCE to save space.