moka-minimal (gnome icon theme). Grayscale versions of Moka & Faba icons (already in SlackBuilds). Moka inherits Faba, so index.theme modified to inherit Faba-Minimal, which inherits gnome, in that order. This is not dependent on packages 'faba-icon-theme' or 'moka-icon-theme'. NOTE: p7zip is used only to extract the source.