Social Bookmark - Site icon color scheme is inconsistent

• Type: Regression Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: 7.0.0 M5
• Fix Version/s: 7.0.0 CE RC1
• Component/s: Social Bookmarks, ~ [Archived] Social Networking
• Labels: None
• Fix Priority: 2
• Sprint: Zebra Mocha

Steps to Reproduce:

1. Deploy social bookmarks hook
2. Add asset portlet that uses social bookmarks (Blog, Knowledgebase)
3. Create asset for that portlet (Blog entry, Knowledgebase Article)
4. Configure portlet to display all social bookmark

Expected result:
Consistent icon design and graphics

Actual Result:
Twitter, Facebook, Google+ and Linkedin all show up with blue icons. The other sites all have black icons.