pleroma/lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex

<h2><%= Gettext.dpgettext("static_pages", "oauth external provider page title", "Sign in with external provider") %></h2>

<%= form_for @conn, Routes.o_auth_path(@conn, :prepare_request), [as: "authorization", method: "get"], fn f -> %>
  <div style="display: none">
    <%= render Phoenix.Controller.view_module(@conn), "_scopes.html", Map.merge(assigns, %{form: f}) %>
  </div>

  <%= hidden_input f, :client_id, value: @client_id %>
  <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
  <%= hidden_input f, :state, value: @state %>

    <%= for strategy <- Pleroma.Config.oauth_consumer_strategies() do %>
      <%= submit Gettext.dpgettext("static_pages", "oauth external provider sign in button", "Sign in with %{strategy}", strategy: String.capitalize(strategy)), name: "provider", value: strategy %>
    <% end %>
<% end %>