🇩🇪Germany markusk Düsseldorf
Patch from #12 🐛 Toolbar menu icons not displayed when active RTBC works nicely and should be preferred over the patch from #9 🐛 Toolbar menu icons not displayed when active RTBC : the latter uses data URIs containing icons which seems unnecessary to me given that the icons reside in /core/misc/icons already. Moving to RTBC.
Side node: the patch from #3 fixes some CSS coding standard violations unrelated to this issue (while also introducing some new violations). These should be addressed separately.