<#-- https://facebookbrand.com/facebookapp/assets/f-logo/ --> <#macro facebook> <#-- https://github.com/logos --> <#macro github> <#-- https://developers.google.com/identity/branding-guidelines --> <#macro google> <#-- https://docs.microsoft.com/azure/active-directory/develop/howto-add-branding-in-azure-ad-apps --> <#macro microsoft>