How can I tell Facebook to upload a login button that displays a signed user profile picture, such as Pinterest?
Someone else asked this question, Facebook, like Pinterest style , but the answer is hacked. If you replace Pinterest app_id with your own, leaving everything else unchanged, you will again receive another login button. Did Pinterest get special private access to this cool feature?

The only relevant code that I found that Pinterest does is the javascript UnauthHomereactPage file. Mine was named "entryChunk-react-UnauthHomeReactPage-c85eaea8.js"
t.prototype.renderProfilePicButton = function P() {
var e = this
, t = '<div class="fb-login-button" data-scope="public_profile,email,user_likes,user_about_me,user_birthday,user_friends" onlogin="checkLoginState"></div>';
return l["default"].createElement("div", {
dangerouslySetInnerHTML: {
__html: t
},
ref: function n(t) {
e.profilePicButton = t
},
style: R.fbProfileButton
})
}
and
FB.init({
appId: f["default"].GEN.templateConst.settings.FACEBOOK_API_KEY,
status: !0,
xfbml: !0,
version: "v2.7"
})
But when I try, my button is just regular:

URL- iframe , , " https://www.facebook.com/plugins" Pinterest " https://www.facebook.com/v2.7/plugins", app_id, domain origin - .
?