list_browser-drop_unrenderable

list_browser <-> drop_unrenderable: bool

If @on (default @off), a dict_item whose style (see list_browser<-styles) has a font that does not provide all characters of the label is deleted from the list_browser<-dict. This is detected when the item is displayed, so fonts are only loaded for the items that are seen. It is used by the combo box of a text_item to show, e.g., font family names in their own font while omitting symbol fonts.