It would be great if DSS supported more icon choices for plugins. We are finding the current list to be pretty limited. Most of the icons are standard images used in applications or brand icons so it seems inappropriate to use any of those. That doesn't leave many choices.
Enabling us to use the current version (or at least a later version) of the fontawesome icon set would greatly expand the options available.
It'd be really cool if one could upload custom (e.g., company specific) icons (including with custom colors) as well. But for most situations, the current version of the fontawesome icons would suffice.