Question: extension points to modify home page (before login)

[gerektoolhy]

Hi,

Is there a built in way to extend/change default home/index page for identity admin? What we want to do is issue a request which would store a branding cookie. That would then be used to brand the login screen in identity. Effectively the cookie contains the domain for the app whose brand should be loaded.

I've looked over, and i could not see any extensions points on how to do this. Any tricks?