app/views/shared/_favicon.html.haml
/ Favicons
= favicon_link_tag "favicon.ico"
= favicon_link_tag "apple-touch-icon.png", rel: "apple-touch-icon", type: "image/png", sizes: "180x180"
= favicon_link_tag "favicon-32x32.png", rel: "icon", type: "image/png", sizes: "32x32"
= favicon_link_tag "favicon-16x16.png", rel: "icon", type: "image/png", sizes: "16x16"
%link{href: "/site.webmanifest", rel: "manifest"}
%link{color: "#00b2ef", href: "/safari-pinned-tab.svg", rel: "mask-icon"}
%meta{content: "#00b2ef", name: "msapplication-TileColor"}
%meta{content: "#ffffff", name: "theme-color"}
/ End Favicons