Plugin icons missing

I am updating a custom Confluence server plugin from v6.6.5 to v.7.1 and notice that the icons listed on https://developer.atlassian.com/server/confluence/icons/ do not seem to be present any more (maybe since 6.7?). Are there replacements? These are not AUI icons and AUI does not have all of them so cannot be a direct replacement (eg icon-space).

Hello @K11
I believe we need to update that documentation, in the meantime please refer to our new icons definition available at https://bitbucket.org/atlassian/confluence-icons/src/master/
This was indeed done as part of Confluence 6.7