You can use OH Icons. Put your icons in $OH_CONF/icons/classic and use oh:<filename without extension>. For dynamic icons there is a flag (oh-label-card - Label Card | openHAB) to set and you need to deploy multiple versions of the icon to that folder based on the instructions at Items | openHAB.
I think you refer to widgets in pages?
This is what im already doing and it works great, also thanks to some older posts from you with good examples! Thanks for that …
But what i mean is, to change the icons shown for the available pages in the sidebar (as seen in my screenshot)
Yes i know and also thanks for your examples from older posts
Thanks!
I will do that but i know its just a “nice to have” feature
Yes, if you add default list widget, default standalone widget, or default card widget Item metadata. You can define and set the properties of the default widgets shown for that Item in each of those three contexts which includes choosing the icon.
MainUI doesn’t use the text based .items file icon parameter for widgets and sitemaps only use OH icons. So you can’t use an f7 icon in that way.