Icon-Request: "layout-bottom" or "layout-footer"

Currently, there are icons “layout-columns”, “layout-left”, and “layout-right” available. I regularly add a tab to my site.yml allowing users to define content shown in the fotter of all pages. It would be really neat to have an icon “layout-bottom” or even “layout-footer” for this tab! I currently use “grid-bottom”, but that seems semantically wrong.