How do I remove the icons in Plone?

This will allow you to remove the navigation icons that appear in Plone’s navigation portlet.

• go into ZMI (Zope Management Interface)
• go to Root Folder of your site
• click on portal_css (CSS Registry). There you’ll see a long list of all the CSSes affecting your site
• disable generated.css

Additionally:

• under “Condition” put the following: not: portal/portal_membership/isAnonymousUser
  (This will allow the icons to appear to users who are logged in.)