The new SB implementation for sm Formula editor module is using a generic folder icon for the 'Elements' deck. Have an opportunity to design a new motif for use in each of the project icon themes.
Created attachment 180202 [details]
Image showing the current icon
In my case it is using the "Gallery" icon. See attached image showing the sidebar and the icon.
I agree that a dedicated icon for Math Elements would be much nicer.
Version: 18.104.22.168.alpha1+ / LibreOffice Community
Build ID: b2467d6c7af988f8ed4e090ebf9472be6c84fb06
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Locale: pt-BR (pt_BR.UTF-8); UI: en-US